Polycom Network Router 4300T User Manual
User Guide  
V2IU 4300T Converged  
Network Appliance  
October 2005  
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Contents  
Contents  
1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–1  
The 4300T Converged Network Appliance . . . . . . . . . . . . . . . . . . . . . . . . . 1–1  
T1 Wide Area Network (WAN) Access Router . . . . . . . . . . . . . . . . . . 1–1  
Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–1  
VoIP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–1  
Quality of Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–1  
Call Quality Monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–2  
Future-proof Scalability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–2  
Feature Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–2  
Front Panel LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–3  
Back Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–4  
Power Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–4  
Erase Button . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–4  
Management console port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–4  
T1/E1 WAN port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–5  
Ethernet WAN port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–5  
2 Getting Started . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–1  
Physical Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–1  
Desktop Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–1  
Wall-Mount Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–1  
Administration of the 4300T . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–2  
3 Configuring the 4300T . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–1  
Configuration Guide For IP Centrex Applications . . . . . . . . . . . . . . . . . . . 3–2  
Configuration Outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–3  
Configuration Guide For Station Side IP PBX Applications . . . . . . . . . . . 3–5  
Configuration Outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–6  
Configuration Guide For Trunk Side IP PBX Applications . . . . . . . . . . . . 3–7  
Configuration Outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–8  
Configuration Guide For Hosted Video Applications . . . . . . . . . . . . . . . . 3–9  
Configuration Guide For Enterprise Video Applications . . . . . . . . . . . . 3–11  
1
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User Guide V2IU 4300T Converged Network Appliance  
System Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–13  
Configure the LAN Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–13  
Configuring VLANs in the 4300T . . . . . . . . . . . . . . . . . . . . . . . . . 3–14  
Modify an Existing VLAN Configuration . . . . . . . . . . . . . . . . . . 3–16  
Delete an Existing VLAN Configuration . . . . . . . . . . . . . . . . . . . 3–16  
Assign the 4300T’s ALG to your Priority VLAN . . . . . . . . . . . . 3–17  
Configure the WAN Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–17  
Protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–19  
Frame Relay Mode and DLCI . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–19  
Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–20  
Payload Loopback . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–20  
Configure the DHCP Server . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–20  
Delete a DHCP IP Address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–22  
Disable The DHCP Server . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–22  
Configure Hostname, SNMP and Remote Logging . . . . . . . . . . . . . 3–23  
Configure SNMP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–23  
Disable SNMP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–24  
Configure Remote System Logging . . . . . . . . . . . . . . . . . . . . . . . 3–24  
Disable Remote System Logging . . . . . . . . . . . . . . . . . . . . . . . . . . 3–24  
Configure a local Hostname . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–25  
Enable Mean Opinion Scoring (MOS) . . . . . . . . . . . . . . . . . . . . . 3–25  
Set MOS Threshold . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–25  
Change the Administration Password . . . . . . . . . . . . . . . . . . . . . . . . 3–26  
VoIP Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–26  
Configure the VoIP ALG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–27  
Configure VoIP Subnet Routing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–29  
Enter a VoIP Subnet Route . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–30  
Delete a VoIP Subnet Route . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–30  
Configure IP Phones, IADs or Softphones . . . . . . . . . . . . . . . . . . . . . 3–31  
Data Networking Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–32  
NAT for Data Traffic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–32  
Configure Dynamic NAT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–33  
Configure Static NAT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–33  
Delete a Static NAT entry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–34  
Static IP routing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–34  
Configure the static route . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–34  
Delete the static route . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–35  
Firewall Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–35  
Enable or disable the firewall . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–36  
Configure Basic settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–36  
Configure Advanced Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–36  
Remove Advanced Setting Entries . . . . . . . . . . . . . . . . . . . . . . . . 3–38  
2
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Contents  
Traffic Management Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–38  
Enable Traffic Shaping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–39  
Optionally enable priority IP addresses . . . . . . . . . . . . . . . . . . . . . . . 3–40  
Enable CAC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–40  
Determining the maximum number of concurrent calls . . . . . . 3–41  
Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–41  
A Closer Look at Traffic Management in the 4300T . . . . . . . . . . . . . 3–41  
Classifying . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–42  
Upstream Traffic Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–42  
Priority classes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–42  
Scheduler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–42  
Traffic shaper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–42  
Downstream Traffic Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–43  
VoIP Survivability Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–44  
Key benefits and features of VoIP survivability . . . . . . . . . . . . . . . . 3–44  
How survivability works . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–45  
Platform Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–46  
V2IU Converged Network Appliances . . . . . . . . . . . . . . . . . . . . . 3–46  
IP Phones . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–46  
PSTN Gateways . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–46  
Configuring VoIP Survivability in V2IU Appliances . . . . . . . . . . . . 3–46  
Step 1 – Enable VoIP Survivability . . . . . . . . . . . . . . . . . . . . . . . . 3–47  
Step 2 – Configure call processing server reachability settings  
(optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–47  
Step 3 - Specify the number of digits to use for local dialing . . 3–48  
Step 4 - Configure the IP address of the local LAN side PSTN  
gateway (optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–49  
Step 5 - Configure call processing server redundancy . . . . . . . 3–50  
4 System Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–1  
Viewing Software Version, Hardware Platform and the LAN MAC Address  
4–1  
Viewing the ALG registration code . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–2  
Enter the Registration Code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–2  
Viewing Networking Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–2  
Routing Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–3  
Link Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–3  
Interface Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–3  
Viewing Advanced System Information . . . . . . . . . . . . . . . . . . . . . . . . 4–4  
System Uptime . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–4  
Process Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–4  
Memory Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–4  
System Logging Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–5  
3
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User Guide V2IU 4300T Converged Network Appliance  
Passive Voice Call Monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–5  
Accessing Troubleshooting Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–5  
Verify Registered Voice and Video Devices . . . . . . . . . . . . . . . . . 4–6  
Performing a Ping Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–7  
Performing a Traceroute Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–7  
Restarting Networking Processes . . . . . . . . . . . . . . . . . . . . . . . . . . 4–8  
Rebooting the 4300T . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–8  
5 Saving and Restoring the 4300T Configuration . . . . . . . . . . 5–1  
The ewn Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–1  
Create a Backup File and Save in Local Flash . . . . . . . . . . . . . . . . . . . 5–2  
Copy a Backup File to a Remote TFTP Server . . . . . . . . . . . . . . . . . . . 5–2  
Download a Backup File from a Remote TFTP Server . . . . . . . . . . . . 5–2  
List the Available Backup Files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–2  
Delete a Backup File . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–3  
Load a Backup File so that it Becomes the Running Configuration . 5–3  
6 Upgrading the 4300T . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6–1  
Upgrade Procedure for Software Revision 1.3.11 or Later . . . . . . . . . . . . 6–1  
Appendix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Appendix–1  
Troubleshooting Tips . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Appendix–1  
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Appendix–2  
Appendix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Appendix–3  
Neighboring Path Navigator Gatekeeper support . . . . . . . . . . . Appendix–3  
Example 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Appendix–3  
V2IU A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Appendix–5  
Gatekeeper A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Appendix–5  
Gatekeeper X . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Appendix–5  
Endpoints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Appendix–6  
Dialing plans . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Appendix–6  
Example 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Appendix–7  
V2IU A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Appendix–8  
Gatekeeper A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Appendix–8  
Network Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Appendix–9  
VoIP ALG – H323 Settings . . . . . . . . . . . . . . . . . . . . . . . Appendix–10  
V2IU B . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Appendix–12  
Gatekeeper B . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Appendix–12  
Network Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Appendix–13  
VoIP ALG – H323 settings . . . . . . . . . . . . . . . . . . . . . . . Appendix–14  
V2IU C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Appendix–16  
4
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Contents  
Network Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Appendix–16  
VoIP ALG – H323 Settings . . . . . . . . . . . . . . . . . . . . . . . Appendix–17  
Endpoints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Appendix–19  
Dialing plans . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Appendix–19  
Path Navigator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Appendix–20  
Regulatory Notices . . . . . . . . . . . . . . . . .Regulatory Notices–1  
END-USER LICENSE AGREEMENT FOR POLYCOM® SOFTWARE .  
Regulatory Notices–1  
FCC PART 15 NOTICE . . . . . . . . . . . . . . . . . . . . . Regulatory Notices–11  
FCC PART 68 NOTICE TO USERS OF DIGITAL SERVICE Regulatory  
Notices–11  
INDUSTRY CANADA (IC) NOTICE . . . . . . . . . Regulatory Notices–12  
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User Guide V2IU 4300T Converged Network Appliance  
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1
Introduction  
The 4300T Converged Network Appliance  
The V2IU 4300T is an intelligent, all-in-one networking solution for enterprises  
and service providers. It reduces costs by simplifying the deployment,  
management and security of converged voice, video and data networks. The  
4300T provides the following important functions for converged networks:  
T1 Wide Area Network (WAN) Access Router  
The 4300T provides an integrated T1 CSU/DSU for small and medium office  
connectivity.  
Security  
VoIP  
A stateful packet inspection firewall is used in combination with a VoIP  
application layer gateway to provide comprehensive “media-aware” security.  
The 4300T also supports IPSec for secure site-to-site networking.  
The 4300T resolves NAT/FW traversal problems for SIP, MGCP and H.323  
traffic. It allows a single public IP address to be used for multiple VoIP clients.  
VoIP survivability is also provided by the 4300T so that local SIP PSTN  
gateways can be used for inbound/outbound calling during WAN link  
failures.  
Quality of Service  
The 4300T maximizes WAN link utilization while optimizing voice quality  
using prioritization and shaping.  
1 - 1  
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User Guide V2IU 4300T Converged Network Appliance  
Call Quality Monitoring  
Passive call quality monitoring for each SIP or MGCP voice call includes  
statistics needed to enforce SLAs and resolve networking problems that  
negatively affect call quality.  
Future-proof Scalability  
The 4300T is a powerful, flexible platform that can be deployed initially as a  
low-cost WAN access router and then licensed through software for more  
advanced VoIP features and increased call performance. It is the ideal  
platform for service providers offering DIA, hosted VoIP and managed  
security services or enterprises migrating to converged voice and data  
networks.  
Feature Summary  
•
VoIP  
— SIP, MGCP(for voice) and H.323 (for video) application layer gateway  
enables a single public IP address to be used for multiple VoIP  
endpoints  
— VoIP survivability provides local call switching to PSTN gateways  
during WAN link failures (SIP only)  
•
•
•
QoS  
— Class based queuing/prioritization  
— Diffserv marking and policing  
— Traffic shaping  
— VoIP call admission control prevents oversubscription of priority  
queue  
Security  
— Stateful packet inspection firewall  
— VoIP aware firewall dynamically provisions and closes UDP ports  
used for VoIP calls  
— IPSec: 3DES, SHA-1  
— NAT/PAT server hides enterprise LAN topology  
Passive Call Quality Monitoring  
— Per call statistics include mean opinion score (average and minimum),  
jitter, latency, packet loss and much more  
— Alarms for poor MOS scores  
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Introduction  
— Active call count indicators  
Front Panel LEDs  
The LEDs display real-time information for key functions of the 4300T. They  
are as follows:  
EM001  
LED Label  
Activity  
Off  
Description  
Power  
Power switch off (or no power from wall)  
Power is supplied to the unit  
Green  
Off  
Status  
Self-tests have failed. The unit has not booted.  
Self-tests completed successfully  
Green  
Flashing  
Indicates configuration is being written to permanent storage or an upgrade is  
in progress  
T1/E1  
Off  
The T1 is in an alarm state and not synchronized  
T1/E1 in-sync, no alarms  
Green  
Link/Act  
LAN  
Flashing indicates activity. On indicates a connection  
100Mbps  
Link/Act  
On = 100Mbps link speed, Off = 10Mbps link speed  
Flashing indicates activity. On indicates a connection  
On = 100Mbps link speed, Off = 10Mbps link speed  
Ethernet WAN  
100Mbps  
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Back Panel  
The back panel of the 4300T contains the following (left to right):  
EM002  
•
•
•
•
•
•
•
Power connector  
Erase button  
Power connector  
4 switched LAN Ethernet ports  
Management console port  
T1 WAN port (RJ-48 with built-in CSU/DSU)  
Ethernet WAN port  
Power Connector  
Erase Button  
The 4300T comes with an AC power cord and power adapter for connecting to  
this port. Little force is necessary when the plug is properly positioned.  
To erase any custom configuration and restore the 4300T to its factory default  
state depress the erase button once and press again before 2 seconds expires.  
Using the Erase button as outlined above means any configuration made to the  
4300T will be lost. Additionally the VoIP ALG registration code must be re-entered  
in the 4300T as covered in Chapter 4: System Diagnostics, viewing the ALG  
registration code. Erasing the configuration means that IP phones installed behind  
the 4300T will not work and Internet connectivity or network access for PCs will be  
down until the system is reconfigured.  
Warning  
Management console port  
This port is used to establish a local console session with the 4300T using a  
VT100 terminal or emulation program. The cable required is a  
straight-through 8-wire cable. The serial port uses a baud rate of 9600, 8 data  
bits, 1 stop bit and no parity.  
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Introduction  
This port is used for debug or local diagnostic purposes only. Primary  
configuration of the 4300T is performed from a web browser as covered in  
Chapter 3.  
T1/E1 WAN port  
The T1 WAN interface with the following features:  
•
•
•
•
Fully integrated CSU/DSU  
T1 support  
Fractional T1 support  
Layer 2 protocol support for: HDLC, Cisco HDLC (cHDLC), PPP, Frame  
Relay  
•
•
On-board RJ-48 connector for easy direct connection  
T1/E1 framer and transceiver  
— B8ZS/HDB3 zero suppression  
— Response to Inband Loop codes  
— Manual payload loop through the GUI  
•
•
•
•
External transmit clock input and receive clock output headers  
Timing: internal or external (loop times from the network)  
Provides long haul CSU or short haul DSU signaling  
Meets FCC part 68 protection requirements  
The WAN port is used for connection to a data T1 line. The device at the far  
end of the line is a router or other device expecting TCP/IP data. Individual  
DS-0 channels on the T1 are not used to carry uncompressed voice.  
Ethernet WAN port  
The Ethernet 10/100 Mbps port on the 4300T can be used as a WAN interface  
as an alternative to the T1 interface. This port is typically used when  
connecting the 4300T to an existing T1/E1 WAN router, cable or xDSL  
modem.  
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Getting Started  
Physical Installation  
The 4300T is designed for desktop, rack or wall-mount installation. Please  
observe the following guidelines when installing the system:  
•
Never assume that the AC cord is disconnected from a power source.  
Always check first.  
•
Always connect the AC power cord to a properly grounded AC outlet to  
avoid damage to the system or injury.  
Ensure that the physical location of the installation has adequate air circulation  
and meets the minimum operating conditions as provided in the  
environmental specifications for the system.  
Secure the power supply using a fastener or nearby shelf so that it does not hang  
from the power connector.  
Warning  
Desktop Installation  
1. Remove the 4300T and accessories from the shipping container.  
2. Place the 4300T on a flat, dry surface such as a desktop, shelf or tray.  
3. Connect the power and network cables to the appropriate ports on the  
back of the system.  
To reduce the risk of fire, use only 26 AWG or larger wire (e.g. 24, 22, 20, etc.) to  
connect the T1 port on your unit to an RJ-45 jack.  
Caution  
Wall-Mount Installation  
The 4300T can be wall-mounted using the two mounting brackets on the  
bottom of the appliance. We recommend using two round or pan head screws.  
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User Guide V2IU 4300T Converged Network Appliance  
Install two screws 4 14/16” horizontally apart on a wall or other vertical  
surface. The screws should protrude from the wall so that you can fit the  
appliance between the head of the screw and the wall.  
1. If you install the screws in drywall use hollow wall anchors to ensure that  
the unit does not pull from the wall due to prolonged strain from the  
cable and power connectors.  
2. Remove the 4300T and accessories from the shipping container.  
3. Hang the 4300T on the wall.  
4. Connect the power and network cables to the appropriate ports on the  
back of the system.  
Secure the power supply using a fastener or nearby shelf so that it does not hang  
from the power connector.  
Warning  
Caution  
To reduce the risk of fire, use only 26 AWG or larger wire (e.g. 24, 22, 20, etc.) to  
connect the T1 port on your unit to an RJ-45 jack.  
Administration of the 4300T  
The 4300T is configured using a web browser such as Internet Explorer or  
Netscape Navigator. The 4300T is shipped with a pre-configured IP address  
for its LAN port of 192.168.1.1. To connect to the 4300T, do the following:  
1. Connect a PC using an IP address of 192.168.1.2 and subnet mask of  
255.255.255.0 to LAN port 4 of the 4300T.  
2. Launch a web browser on the PC and enter the URL string: 192.168.1.1.  
Press Return. The initial 4300T main configuration menu appears.  
3. Select the Network link - enter the username root and the password  
default to log into the system.  
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Getting Started  
For secure management of your network, be sure to change the default userid and  
password as described under Change the Administration Password.  
Note  
4. Continue to configure the system using the information provided in  
Chapter 3.  
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Configuring the 4300T  
The 4300T is a flexible, easy to use converged network appliance that provides  
many critical networking functions for IP based voice, video and data. It can  
be installed in several different topologies:  
•
•
•
•
At the customer premise for IP Centrex and hosted video applications  
At the station side of enterprise IP PBXs  
At the trunk side of enterprise IP PBXs  
At the public/private IP address boundary for enterprise video  
applications  
Most users will follow the steps provided in the “Configuring The Systems  
Settings” section of this manual to initially connect the 4300T into their IP  
network. The remainder of the configuration can be different based on the  
application, VoIP topology and presence of other networking equipment such  
as firewalls or DHCP servers. In general, however, the steps used to configure  
the 4300T are:  
Step  
Task  
1
2
3
4
5
6
System configuration  
VoIP configuration  
Data networking configuration  
Firewall configuration  
Traffic management configuration  
VoIP survivability configuration  
Some of the steps are optional depending on your particular application. We  
have provided configuration guidelines below for each of the application  
types supported by the 4300T.  
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Configuration Guide For IP Centrex Applications  
A typical 4300T installation for an IP Centrex application requires no external  
router or firewall. The 4300T WAN port is connected directly to the T1/E1 line  
and the LAN port(s) are connected directly to enterprise devices and/or  
Ethernet switches.  
VoIP Operations Center  
Application Server  
Softswitch  
NMS  
T1  
Gateway  
PSTN  
PSTN  
Enterprise  
4300T  
Enterprise  
4300T  
T1/FT1  
T1/FT1  
Gateway  
EM003  
VoIP signaling is performed in the service provider network via a softswitch  
and the 4300T acts as a proxy for the voice devices installed in the enterprise  
LAN. In this configuration a single public IP address is used to proxy for all  
of the IP phones and to route to multiple PC’s installed on the LAN.  
The 4300T performs the following functions in this application:  
•
•
WAN/LAN IP routing.  
Traffic shaping and priority queuing to guarantee high quality voice  
traffic. These mechanisms protect voice and data traffic from contending  
for the same network resources to guarantee low latency and the highest  
call quality possible for VoIP traffic. At the same time they ensure the best  
utilization of WAN bandwidth by enabling data traffic to burst up to full  
line rate in the absence of voice calls. Precedence is automatically given to  
traffic coming from IP phones and other devices using the 4300T’s  
Application Layer Gateway function.  
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Configuring the 4300T  
•
•
NAT/PAT translation for IP phones and PC’s. This allows a single public  
IP address to be used on the WAN link to represent all of the private IP  
addresses assigned to the LAN IP phones and PC’s.  
Static NAT entries. This enables the customer to use a WAN public IP  
address for data servers (web, mail, ftp, etc.) connected behind the 4300T.  
These servers can then be configured with private IP addresses for  
additional security.  
•
•
A “VoIP” aware firewall. A full Layer 7 gateway for voice traffic and a  
stateful packet inspection firewall for data traffic.  
Call Admission Control (CAC). CAC uses a deterministic algorithm to  
decide when there are insufficient network resources available to  
adequately support new calls and then return the equivalent of a “fast  
busy” to new call requests.  
•
DHCP server and TFTP relay. These features are used to simplify and  
expedite the IP configuration of phones and PC’s. This also includes VoIP  
signaling gateway information (MGCP, SIP, H.323 and SCCP).  
•
•
Call quality monitoring (using MOS, jitter, latency, packet loss and much  
more) and test tools.  
VoIP survivability. Provides call switching to an LAN based PSTN  
gateway during WAN outages.  
Configuration Outline  
Configure For IP Centrex  
Task  
Subtask  
Application?  
System Configuration  
configure LAN/WAN interface  
set ethernet link rate  
enable the DHCP server  
configure SNMP  
Yes  
Optional  
Optional but recommended  
Optional  
VoIP Configuration  
enable the VoIP ALG  
configure a VoIP subnet route  
dynamic NAT  
Yes  
Optional  
Data Networking Configuration  
Optional but recommended  
static NAT  
Optional  
Optional  
Yes  
static IP routing  
Firewall Configuration  
enable the data firewall  
configure basic settings  
configure advanced settings  
Optional  
Optional  
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Traffic Management  
Configuration  
enable traffic shaping  
Yes  
enable Call Admission Control  
enable VoIP survivability  
Optional  
Yes  
VoIP Survivability  
configure call processing server  
reachability settings  
Optional  
specify the number of digits to use for  
local dialing  
Optional  
Optional  
Optional  
configure the IP address of the local LAN  
side PSTN gateway  
configure call processing server  
redundancy  
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Configuring the 4300T  
Configuration Guide For Station Side IP PBX Applications  
Most private enterprise VoIP networks use an IP PBX at the corporate  
headquarters location to provide voice switching between headquarters,  
branch offices and the PSTN. The 4300T is used in these environments to  
securely connect branch office employees to the IP PBX installed in the  
corporate headquarters location.  
Headquarters  
IP PBX  
4300T  
T1  
PSTN  
Branch Office  
4300T  
Branch Office  
4300T  
T1/FT1  
T1/FT1  
Gateway  
EM004  
The installation of an 4300T on the station side of an enterprise IP PBX is very  
similar to the IP Centrex application above. The branch office is connected to  
the corporate network using a private T1/E1 link connected directly to the  
WAN port of the 4300T. The LAN port(s) of the 4300T are connected directly  
to enterprise devices and/or Ethernet switches.  
The IP PBX in the corporate headquarters location performs VoIP signaling  
and the 4300T acts as a proxy for the voice devices installed at the branch  
office. Please note that in the configuration the 4300T located at the  
Headquarters location is acting as a WAN router only. The 4300Ts installed at  
the brand offices perform the following functions in this application:  
•
WAN/LAN IP routing.  
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•
Traffic shaping and priority queuing to guarantee high quality voice  
traffic. These mechanisms protect voice and data traffic from contending  
for the same network resources to guarantee low latency and the highest  
call quality possible for VoIP traffic. At the same time they ensure the best  
utilization of WAN bandwidth by enabling data traffic to burst up to full  
line rate in the absence of voice calls. Precedence is automatically given to  
traffic coming from IP phones and other devices using the 4300T’s  
Application Layer Gateway function.  
•
NAT/PAT translation for IP phones and PC’s. This allows a single IP  
address to be used on the WAN link to represent all of the private IP  
addresses assigned to the LAN IP phones and PC’s.  
•
•
A “VoIP” aware firewall. A full layer 7 gateway for voice traffic and a  
stateful packet inspection firewall for data traffic.  
Call Admission Control (CAC). CAC uses a deterministic algorithm to  
decide when there are insufficient network resources available to  
adequately support new calls and then return the equivalent of a “fast  
busy” to new call requests.  
•
DHCP server and TFTP relay. These features are used to simplify and  
expedite the IP configuration of phones and PC’s. This also includes VoIP  
signaling gateway information (MGCP, SIP, H.323 and SCCP).  
•
•
Call quality monitoring and test tools.  
VoIP survivability. Provides call switching to an LAN based PSTN  
gateway during WAN outages.  
Configuration Outline  
Configure For Station  
Side IP PBX  
Task  
Subtask  
Application?  
System Configuration  
configure LAN/WAN interface  
set ethernet link rate  
enable the DHCP server  
Yes  
Optional  
Optional but  
recommended  
configure SNMP  
Optional  
Yes  
VoIP Configuration  
enable the VoIP ALG  
configure a VoIP subnet route  
dynamic NAT  
Optional  
Data Networking Configuration  
Optional but  
recommended  
static NAT  
Optional  
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Configuring the 4300T  
static IP routing  
Optional  
Yes  
Firewall Configuration  
enable the data firewall  
configure basic settings  
configure advanced settings  
enable traffic shaping  
Optional  
Optional  
Yes  
Traffic Management  
Configuration  
enable Call Admission Control  
enable VoIP survivability  
Optional  
Yes  
VoIP Survivability  
configure call processing server reachability  
settings  
Optional  
specify the number of digits to use for local  
dialing  
Optional  
Optional  
Optional  
configure the IP address of the local LAN side  
PSTN gateway  
configure call processing server redundancy  
Configuration Guide For Trunk Side IP PBX Applications  
Companies with existing IP-based WAN links for inter-office voice and data  
communications can use the 4300T as a traffic shaper to meet the stringent  
jitter, latency and packet loss requirements for toll quality voice. The 4300T is  
deployed at the edge of the WAN in both headquarters and branch office  
locations, as shown below.  
Branch Office  
4300T  
Headquarters  
IP PBX  
T1/E1  
IP PBX  
4300T  
Frame Relay  
Or  
Branch Office  
IP Network  
T1/E1  
4300T  
IP PBX  
EM005  
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The 4300T performs WAN/LAN IP routing and traffic management functions  
in this application. In particular, it provides prioritization to ensure voice  
packets are not delayed or dropped while allowing data traffic to use all  
remaining bandwidth.  
Configuration Outline  
Configure For Trunk Side IP  
Task  
Subtask  
PBX Application?  
System Configuration  
configure LAN/WAN interface  
set ethernet link rate  
enable the DHCP server  
configure SNMP  
Yes  
Optional  
Not required  
Optional  
VoIP Configuration  
enable the VoIP ALG  
Not required  
configure a VoIP subnet route Not required  
Data Networking  
Configuration  
dynamic NAT  
Not required  
static NAT  
Not required  
Not required  
Not required  
Not required  
Not required  
Yes  
static IP routing  
Firewall Configuration  
enable the data firewall  
configure basic settings  
configure advanced settings  
enable traffic shaping  
Traffic Management  
Configuration  
enable Call Admission  
Control  
Not required  
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Configuring the 4300T  
Configuration Guide For Hosted Video Applications  
A typical 4300T installation for hosted video applications is depicted in the  
diagram below. In this scenario, the 4300Ts are used to connect all of the video  
endpoints to the Gatekeeper. The video endpoints should be configured to  
point to the LAN address of the 4300T as the Gatekeeper and the 4300T will  
proxy RAS and call setup messages to the Gatekeeper  
Service Provider  
ISDN,  
PSTN Network  
PSTN  
H.323  
Gatekeeper  
NMS  
Softswitch  
Gateway  
MCU  
5300-S  
Aggregation Router  
Hotspot  
NAT/Firewall  
Public IP  
Network  
PSTN  
SIP Voice  
User  
T-1/E-1  
NxT-1/E-1  
Company A  
Company B  
5300-E  
Aggregation  
Router  
4300T  
H.323 Video  
Endpoint  
Gateway  
IP  
Phone  
V500  
H.323 Video  
Endpoint  
Laptop  
IP  
Phone  
EM008B  
The 4300T is installed at the customer premises and is used as a demarcation  
point for the video service by providing the following functions:  
•
WAN/LAN IP routing.  
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•
Traffic shaping and priority queuing to guarantee high quality video  
traffic. These mechanisms protect video and data traffic from contending  
for the same network resources to guarantee low latency and the highest  
call quality possible for voice and video traffic. At the same time they  
ensure the best utilization of WAN bandwidth by enabling data traffic to  
burst up to full line rate in the absence of video calls. Precedence is  
automatically given to traffic coming from video endpoints and other  
devices using the 4300T’s Application Layer Gateway function.  
•
Video NAT/PAT translation for video endpoints and PC’s. This allows a  
single IP address to be used on the WAN link to represent all of the private  
IP addresses assigned to the LAN video endpoints and PC’s.  
•
•
A video aware firewall. A full layer 7 gateway for video traffic and a  
stateful packet inspection firewall for data traffic  
Call Admission Control (CAC). CAC uses a deterministic algorithm to  
decide when there are insufficient network resources available to  
adequately support new video calls and then return the equivalent of a  
“fast busy” to new call requests.  
Configure For Hosted  
Task  
Subtask  
Video Applications?  
System Configuration  
configure LAN/WAN interface  
set ethernet link rate  
enable the DHCP server  
configure SNMP  
Yes  
Optional  
Optional  
Optional  
VoIP Configuration  
enable the VoIP ALG  
configure a VoIP subnet route  
dynamic NAT  
Yes  
Optional  
Data Networking Configuration  
Firewall Configuration  
Optional but recommended  
static NAT  
Optional  
Optional  
Yes  
static IP routing  
enable the data firewall  
configure basic settings  
configure advanced settings  
enable traffic shaping  
Optional  
Optional  
Yes  
Traffic Management  
Configuration  
enable Call Admission Control  
Optional  
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Configuring the 4300T  
Configuration Guide For Enterprise Video Applications  
A typical 4300T installation for enterprise video applications is depicted in the  
diagram below. In this scenario, the 4300Ts are used to connect all of the video  
endpoints to the Gatekeeper. The video endpoints should be configured to  
point to the LAN address of the 4300T as the Gatekeeper and the 4300T will  
proxy RAS and call setup messages to the Gatekeeper.  
Headquarters  
PC  
H.323  
Gatekeeper  
Application  
Server  
Softswitch  
PC  
PC  
NMS  
IP Phone  
PSTN  
Gateway  
5300-S  
5300-E  
IP Phone  
IP Phone  
Aggregation Router  
IP  
Network  
PSTN  
PSTN  
T-1/E-1  
NxT-1/E-1  
Branch Office  
Company B  
Aggregation  
Router  
5300-E  
4300T  
H.323  
Gateway  
Endpoint  
H.323  
Gateway  
PC  
IP Phone  
Laptop  
IP Phone  
EM009A  
The 4300T is installed at the private/public IP address boundary and provides  
the following functions:  
•
•
WAN/LAN IP routing.  
Traffic shaping and priority queuing to guarantee high quality video  
traffic. These mechanisms protect video and data traffic from contending  
for the same network resources to guarantee low latency and the highest  
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User Guide V2IU 4300T Converged Network Appliance  
call quality possible for voice and video traffic. At the same time they  
ensure the best utilization of WAN bandwidth by enabling data traffic to  
burst up to full line rate in the absence of video calls. Precedence is  
automatically given to traffic coming from video endpoints and other  
devices using the 4300T’s Application Layer Gateway function.  
•
Video NAT/PAT translation for video endpoints and PC’s. This allows a  
single IP address to be used on the WAN link to represent all of the private  
IP addresses assigned to the LAN video endpoints and PC’s.  
•
•
A video aware firewall. A full layer 7 gateway for video traffic and a  
stateful packet inspection firewall for data traffic  
Call Admission Control (CAC). CAC uses a deterministic algorithm to  
decide when there are insufficient network resources available to  
adequately support new video calls and then return the equivalent of a  
“fast busy” to new call requests.  
Configure For Hosted  
Task  
Subtask  
Video Applications?  
System Configuration  
configure LAN/WAN interface  
set ethernet link rate  
enable the DHCP server  
configure SNMP  
Yes  
Optional  
Optional  
Optional  
VoIP Configuration  
enable the VoIP ALG  
configure a VoIP subnet route  
dynamic NAT  
Yes  
Optional  
Data Networking Configuration  
Firewall Configuration  
Optional but recommended  
static NAT  
Optional  
Optional  
Yes  
static IP routing  
enable the data firewall  
configure basic settings  
configure advanced settings  
enable traffic shaping  
Optional  
Optional  
Yes  
Traffic Management  
Configuration  
enable Call Admission Control  
Optional  
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Configuring the 4300T  
System Configuration  
This section explains how to configure the 4300T to function in your IP  
network. You will configure the T1/E1 WAN interface, Ethernet interfaces,  
network addresses, DNS settings, default gateway, SNMP settings and change  
the administrative password.  
1. Physically connect to the 4300T as described in Administration of the  
4300T on page 2-2.  
A browser-based configuration GUI should appear, as shown here.  
2. Select the Network entry in the Configuration Menu.  
Configure the LAN Interface  
The 4300T provides an integrated 4 port 10/100 Mbps ethernet switch that can  
be optionally configured to support 802.1q VLANs. Integrated VLAN support  
simplifies the integration of the 4300T with existing VLAN-based networks.  
The 4300T is able to receive 802.1q-tagged packets from a downstream VLAN  
switch and appropriately route and process them per its firewall rules.  
Packets received from the WAN are placed in the appropriate VLAN based on  
IP address routing.  
By default VLANs are not enabled and a single IP address is used for all 4  
ethernet ports. The configuration of this address is as follows:  
1. Enter the IP Address.  
2. Enter the Subnet Mask (e.g. 255.255.255.0).  
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3. Press Submit.  
Configuring VLANs in the 4300T  
As depicted in the diagram below, VLANs are used to connect the 4300T to an  
Ethernet switch that has been configured to use VLANs.  
VLANid 1/2  
4300T  
VLAN  
Switch  
VLANid 1/3  
VLANid 1/2/3  
(VLANid 16)  
P1  
P2  
P3  
P4  
WAN  
VLANid 1/2/3  
802.1  
EM006  
Typically, all VoIP devices are placed in the same VLAN while data devices  
are placed in a different VLAN. This is to ensure priority treatment of the VoIP  
traffic on the LAN. Note that the 4300T does not require VLANs to prioritize  
VoIP traffic; prioritization is determined by the VOS Application Layer  
Gateway, regardless of VLAN. Some important notes about VLANs:  
•
A physical LAN port will operate in either 802.1 or 802.1q mode, not both  
simultaneously  
•
•
•
The 4300T supports up to 16 VLANs  
A unique IP Subnet is assigned to each VLAN  
You can associate one or more VLANs to each LAN port operating in  
802.1q mode  
•
•
•
Traffic within a VLAN is switched among all ports with membership  
Traffic between VLANs is routed by the 4300T  
The 4300T ALG can only be assigned to one VLAN id  
— Only ALG traffic is prioritized over the WAN  
— Other non-VoIP traffic in the same VLAN will not receive priority  
treatment  
•
•
A DHCP server can be enabled/disabled per VLAN  
Cisco Discovery Protocol is not supported  
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Configuring the 4300T  
•
802.1p is not currently supported  
1. Select the Network link.  
2. Select Enable VLAN support.  
3. Press Submit.  
Be careful when changing a port from 802.1 to 802.1q mode. Any 802.1 devices  
connected to that port (such as your management PC!) will loose access to the  
4300T. Port 4 is only able to receive 802.1 frames, so a PC can always be  
connected to this port if the configuration of the other ports is unknown.  
Caution  
4. Select System.  
5. Select VLAN Configuration.  
6. Adjust LAN Port Membership drop-down boxes to specify 802.1 or  
802.1q mode, as desired. Press Modify.  
If changing modes, the radio-buttons or checkboxes will change from one  
style to the other.  
7. Under Add and configure a new VLAN enter a new VLAN ID, the  
4300T’s IP address within this VLAN, and the Network Mask. Press  
Add.  
A new VLAN entry will be added to the VLAN Configuration above.  
8. Depending on the mode of a physical port, assign it to one or more  
VLANs:  
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— 802.1 mode: Assign the port to any ONE VLAN.  
— 802.1q mode: Assign the port to any number of VLANs  
Perform steps 1 through 6 above for each VLAN you wish to create.  
Modify an Existing VLAN Configuration  
1. Select the Network link.  
2. Select VLAN Settings.  
3. Change the desired settings.  
4. Press the Modify to modify the VLAN. The Reset button will restore the  
input area being modified to its previous value.  
Delete an Existing VLAN Configuration  
1. Select the Network link.  
2. Select VLAN Settings.  
3. Press the trash can icon next to the VLAN you wish to delete.  
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Configuring the 4300T  
Assign the 4300T’s ALG to your Priority VLAN  
Once you have completed your VLAN configuration you must assign the  
4300T ALG to the VLAN containing your VoIP phones.  
1. Select the VoIP ALG from the main configuration menu.  
2. Use the drop down menu to assign the ALG to the VLAN ID containing  
your VoIP phones.  
3. Press Submit.  
Configure the WAN Interface  
The 10/100 Ethernet WAN port is configured as follows:  
1. Select ADSL-PPPoE if you want to connect to Internet using ADSL and  
your ISP has given PPPoE username and password. Press Submit. You  
will be prompted to enter username and password, enter these and press  
Submit again.  
2. Select DHCP if you want to get WAN side IP address using DHCP server  
available in WAN side of the network. Press Submit.  
3. Select Static IP address if you want to manually assign the IP address  
configuration to the ethernet WAN interface.  
4. Enter the IP Address.  
5. Enter the Subnet Mask (e.g. 255.255.255.0).  
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User Guide V2IU 4300T Converged Network Appliance  
6. Enter the Default Gateway. This is usually the upstream router’s IP  
address. Packets destined for IP networks not known to the 4300T are  
forwarded to the default gateway for handling.  
7. Enter the Primary DNS Server. The DNS server is used by the 4300T to  
resolve domain names to IP addresses. The value entered into this field is  
provided to IP devices that use the 4300T as a DHCP server. The 4300T  
VoIP ALG also uses it if domain names are used instead of IP addresses  
to identify signaling and/or TFTP servers (see the section entitled  
“Configuring the VoIP ALG” for more details).  
8. Enter the Secondary DNS Server. This server will be used in the event  
that the primary DNS server is not reachable.  
9. Press Submit.  
To enable the T1 interface:  
1. Select Network.  
2. Select the T1 radio button.  
3. Select Submit.  
To configure the T1 parameters:  
1. Select Network.  
2. Select the T1 link next to the radio button to proceed to the T1  
Configuration page.  
The T1 Configuration menu will display, as shown here.  
The 4300T supports a wide range of T1/E1 Layer 2 configuration parameters.  
The specific values you will need must be supplied by the WAN provider.  
Each of the 4300T’s configurable parameters are described below.  
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Configuring the 4300T  
Protocol  
Display and set the T1 Layer 2 protocol. Supported protocols are:  
•
•
•
•
•
HDLC  
Cisco HDLC  
PPP  
ANSI (Frame Relay)  
CCITT (Frame Relay)  
1. Select the desired T1 protocol.  
2. Press Submit.  
Frame Relay Mode and DLCI  
When the Protocol is one of ANSI or CCITT, then additional Frame Relay  
configuration parameters are required.  
The Frame Relay Mode is usually set to DTE for the customer premises.  
The Frame Relay DLCI is set by the WAN provider and identifies the far-end  
device across the Frame Relay network. This DLCI can also be used to carry  
voice traffic only by enabling the Secondary DLCI for data.  
Most installations will use a single DLCI for both voice and data traffic.  
However, in instances where the network will provide a different quality of  
service based on DLCI number it is desirable to place all voice traffic on one  
DLCI and then configure a second DLCI for data. In this case, the Secondary  
DLCI is configured as follows:  
1. Select Network.  
2. Select the T1 link next to the radio button to proceed to the T1  
configuration page.  
3. Select Enable in the Frame Relay Secondary Settings section of the page.  
4. Enter the Secondary DLCI, IP Address, Network Mask and Gateway for  
the data traffic using the Secondary DLCI.  
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User Guide V2IU 4300T Converged Network Appliance  
Timing  
Display and set the clock timing source for the T1/E1 interface. The timing can  
be either derived from the network (External) or provided to the T1 interface  
by the V2IU (Internal). With a carrier-provided T1, the timing is usually  
derived from the network (External, the default setting).  
Mismatched timing modes can result in WAN connectivity but with intermittent data  
loss.  
Warning  
Payload Loopback  
Display and set the loopback setting. During T1 line testing the local interface  
can be set to Loopback to allow the network provider to verify connectivity  
and line quality. For normal operation the setting should always be No  
Loopback (the default setting).  
Configure the DHCP Server  
The 4300T can act as a DHCP server granting IP addresses to PCs,  
workstations, servers or voice devices (IP phones, IADs or softphones)  
connected to its LAN interfaces. DHCP is a protocol that enables IP devices to  
obtain temporary or permanent IP addresses (out of a pool) from centrally  
administered servers.  
The user can configure blocks of IP addresses, a default gateway, DNS servers,  
NTP server address, Time offset from NTP value, WINS address and  
TFTP/FTP server name that can be served to the requesting IP devices.  
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Configuring the 4300T  
In addition the 4300T will provide its LAN IP address in DHCP user options  
150 and 151 for use by IP phones. Some IP phones use these values for  
configuration of their TFTP server and MGCP control server addresses.  
The DHCP server in the 4300T should not be used if a DHCP server already exists  
in the same subnet as the 4300T. Also, it is recommended that you assign static IP  
addresses for common-access devices such as network printers or fax machines.  
Note  
You can also enable or disable the 4300T DHCP server on a per VLAN basis.  
1. Select DHCP Server.  
2. If you are using VLANs select the desired VLAN ID from the drop down  
menu.  
3. The default value for the DHCP server is disabled. Click the top  
checkbox to enable or disable the internal DHCP server (default is  
disabled). If you are using VLANs select the desired VLAN ID.  
4. Enter the Lease Duration.  
The lease duration is the amount of time in days that an IP device may use  
an assigned IP address before requesting that it be renewed. The default  
value is 7 days and the valid range of input is 1 to 30 days.  
5. Enter the Subnet Mask.  
This is the subnet mask that will be sent via DHCP to the requesting IP  
devices.  
6. Enter the DHCP IP Addresses.  
This is the pool of IP addresses that will be provided to the requesting IP  
devices. You can enter both individual IP addresses or a range of  
addresses using the following format:  
192.168.1.2 (single address)  
192.168.1.4-10 (address range 192.168.1.4 through 192.168.1.10)  
The range format can only be used for class C addresses (those with a subnet  
mask of 255.255.255.0).  
Note  
7. Enter the Time Offset (DHCP user option 2).  
8. Set the time offset in hours from UTC for your local location. This value  
is optional; if supplied, it will be delivered to clients.  
9. Enter the NTP Server Address (DHCP user option 42).  
This is the IP address of a Network Time Server. This value is optional; if  
supplied, it will be delivered to clients.  
10. Enter the WINS Address.  
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If you are not using WINS leave this field blank.  
Note  
The Windows Internal Naming Service (WINS) is a service that keeps a  
database of computer name-to-IP address mappings so that computer  
names used in Windows environments can be mapped to IP addresses.  
The WINS Address is the IP address of the WINS server in your network.  
This value will be delivered to clients.  
1. Enter the TFTP/FTP Server Name (DHCP user option 66).  
Some IP phones use this setting to locate the TFTP or FTP servers which  
contain the phone software image used during boot. By default this  
option is the same as the TFTP server on the VoIP ALG page.  
2. Primary and Secondary DNS  
The primary and secondary DNS values come from those set under the  
WAN interface configuration, see Configure the WAN interface. These  
values will be delivered to clients.  
3. Default Gateway  
The default gateway is automatically set to the 4300T’s LAN address, see  
Configure the LAN interface. This value will be delivered to clients.  
4. Press Submit.  
Delete a DHCP IP Address  
1. Select DHCP Server.  
2. To delete an IP address or a range of IP addresses highlight an entry or  
range of entries in the DHCP IP Addresses list and press the Delete key  
on your keyboard.  
3. Press Submit.  
Disable The DHCP Server  
1. Select DHCP Server.  
2. Uncheck the Enable DHCP Server checkbox.  
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Configuring the 4300T  
3. Press Submit.  
Configure Hostname, SNMP and Remote Logging  
The 4300T can be managed remotely by an SNMP network management  
system such as HP Openview. The 4300T supports SNMPv1 or SNMPv3 and  
MIB-II (RFC1213). All MIB-II variables are read only. The MIB variables  
sysContact and sysLocation are set by the web GUI.  
Messages generated by the 4300T can be sent to a remote log server.  
The configuration screen is reached through the Configuration Menu:  
1. Select System.  
2. Select System Overview.  
3. Select Services Configuration.  
Configure SNMP  
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User Guide V2IU 4300T Converged Network Appliance  
1. Select the Enable SNMP v1 or v3 checkbox. If using SNMPv1 enter the  
Read-Only Community. If using SNMPv3 enter the User Name,  
Passphrase and Security method.  
2. Enter the System Location.  
This is a comment string that can be used to indicate the physical location  
of the 4300T. By default, no value is set.  
3. Enter the System Contact.  
This is the administrative contact information for the 4300T. By default,  
no value is set.  
4. Enter the SNMP Port.  
This is the port that the 4300T uses for SNMP communications with the  
network management system. The default is 161.  
5. Press Submit.  
Disable SNMP  
1. Select System.  
2. Select System Overview.  
3. Select Services Configuration.  
4. Uncheck the Enable SNMP checkbox.  
5. Press Submit.  
Configure Remote System Logging  
The 4300T can be configured to log system messages to an external syslog  
server.  
1. Select the Enable Remote System Logging checkbox.  
2. Enter the IP address of the Remote Syslog Host.  
By default messages are sent to the remote host on port 514. This port can  
be changed by using the syntax ADDRESS:PORT.  
3. Press Submit.  
Disable Remote System Logging  
1. Select System.  
2. Select System Overview.  
3. Select Services Configuration.  
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Configuring the 4300T  
4. Uncheck the Enable Remote System Logging checkbox.  
5. Press Submit.  
Configure a local Hostname  
A locally configured hostname is useful for remote management. This name  
can appear as the identifier string for the 4300T on a system management  
console.  
>> Enter a host name in the field provided.  
Enable Mean Opinion Scoring (MOS)  
The 4300T produces useful statistics on a per call basis that can be written to  
syslog. These include MOS, jitter, latency, packet loss and much more.  
1. Select System.  
2. Select System Overview.  
3. Select Services Configuration.  
4. Select Enable MOS.  
Set MOS Threshold  
You can define a minimum MOS value in the 4300T such that a message will  
be sent to syslog when the measured MOS value drops below the minimum.  
This is useful when for monitoring a particular location for call quality  
problems and enables pro-active resolution of problems that negatively affect  
call quality.  
1. Select System.  
2. Select System Overview.  
3. Select Services Configuration.  
4. Enter the minimum MOS threshold in the Set MOS threshold field.  
5. Press Submit  
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User Guide V2IU 4300T Converged Network Appliance  
Change the Administration Password  
We strongly recommend that you change the default password for the root  
administrative account using the following steps:  
The new password must be between 6 and 20 characters in length. Any  
combination of alpha and numeric characters is accepted.  
Note  
1. Enter the password you chose in step C again in the Confirm Password to  
ensure that there were no mistakes in the initial entry.  
2. Press Submit.  
VoIP Configuration  
The 4300T provides a VoIP application layer gateway (ALG) for the SIP,  
MGCP, and H.323 protocols. The ALG proxies the connection between the  
VoIP softswitch, IP PBX or gatekeeper and voice and video devices such as IP  
phones, IADs or softphones. By acting as a proxy the 4300T is able to provide  
several important functions for IP based voice and video:  
•
Provide NAT/PAT services for voice and video traffic. NAT/PAT for  
VoIP enables you to use a single public IP address on the WAN interface  
of the 4300T to represent multiple private IP addresses assigned to voice  
or video devices on the LAN. The NAT function maps both IP address  
and IP port number between the public and private addresses so that all  
signaling and VoIP media packets are translated. A single public IP  
address can support up to 253 voice and video devices.  
•
Provide security services for voice and video traffic.  
— NAT/PAT services hide enterprise LAN topology from hackers.  
— The ALG acts as a “voice and video aware” firewall and ensures only  
authenticated voice traffic enters the enterprise LAN. This is  
accomplished by the dynamic provisioning of signaling and media  
ports for authenticated voice devices. The implementation is stateful  
and open ports are closed automatically when no longer required to  
support the voice or video call.  
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Configuring the 4300T  
•
Enable mobility in the enterprise LAN for voice devices. This is useful, for  
example, when using WiFi or moving office locations. In these instances  
the IP address of the voice and video device may be changed.  
Configure the VoIP ALG  
In order to configure the VoIP ALG the 4300T must be told where to reach the  
signaling servers and TFTP server on behalf of the voice devices.  
1. Select VoIP ALG.  
2. If using VLANs assign the ALG to a specific VLAN id using the drop  
down menu.  
3. If you are using MGCP enter the MGCP Server IP Address, MGCP Media  
Gateway Port and MGCP Notified Entity Port.  
4. If you are using SIP enter the SIP Server IP Address and SIP server port.  
The SIP server port is the port used by the SIP registrar. The default  
value is port 5060.  
5. If you are using H.323 enter the H.323 Gatekeeper IP Address.  
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6. Enter the TFTP Server Address. This address is used to identify the TFTP  
server that contains the images used by IP phones at boot up. The 4300T  
performs a TFTP server relay function.  
It is not necessary to program in an FTP server address if your IP phones use the  
FTP protocol instead of TFTP to retrieve their images. A relay function is not  
needed for FTP as the 4300T will forward FTP traffic to the destination server as  
programmed in your IP phone.  
Note  
7. Automatic MGCP Re-registration is used to re-register MGCP endpoints  
every time the network or system restarts. Enable this feature to  
automatically synchronize the softswitch and phones immediately after a  
restart. The default is Enabled.  
8. The MGCP Re-registration Rate is used to set the number of MGCP RSIP  
messages to send per second to the Media Gateway Controller when  
re-registration is needed. If the MGCP Re-registration Rate needs to be  
changed, enter a value between 1 and 5. Generally, this value does not  
need to be modified. The default value is 5 msg/second.  
9. The system re-registers clients when it starts up. If any of these  
re-registration requests fail, the system will wait for the configured  
number of seconds and then retry the re-registration for the clients that  
failed. The system will make at most 10 re-registration requests for failed  
attempts. If the MGCP Re-registration Retry Delay needs to be changed,  
enter a value between 30 and 60 seconds. Generally, this value does not  
need to be modified. The default value is 30 seconds.  
10. The H.323 TerminalType is used to specify the type of terminal that the  
Voice Appliance should use. It can be either endpoint or gateway. The  
Maximum Bandwidth specifies the bandwidth to allow for H.323 calls.  
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Configuring the 4300T  
The bandwidth is specified in kbps and if it is set to 0, bandwidth  
management is not enforced. Only calls with media traversing the 4300T  
is counted towards the bandwidth maximum.  
11. The Current payload bandwidth calculates the current video traffic,  
without IP overhead, traversing the Appliance. The Estimated total  
bandwidth calculates the total video traffic, plus IP overhead, traversing  
the Appliance.  
12. The H.323 Max Aliases limits the number of aliases that are allowed to  
register with the Voice Appliance. If this number is exceeded when a  
client tries to register, the registration will be rejected. If the value is set to  
0, the maximum is not enforced.  
13. The SIP LAN Side Gateway is used to configure a LAN side SIP gateway  
to which calls that are not for a registered phone can be sent. The name of  
the gateway is the name that is configured for the gateway in the  
soft-switch and the IP address is the address where the gateway can be  
reached.  
14. Press Submit.  
Configure VoIP Subnet Routing  
It is not necessary to configure VoIP subnet routing if all of your voice and  
video devices are installed on the same IP subnet as the 4300T. In some  
installations the voice and video devices are located in different subnets than  
the 4300T and connected via intermediate routers. In these instances it is  
necessary to configure a return path in the 4300T by specifying the  
intermediate router who knows how to reach the voice devices. This router  
must be reachable by the 4300T.  
IP Phones  
V2IU  
Router  
WAN  
Subnet B  
Subnet B  
EM007B  
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VoIP Subnet Routing is separate and independent from static data routes (see  
Note  
Static IP routing). VoIP subnet routes must be configured for each LAN subnet that  
contains devices making use of the 4300T’s Application Layer Gateway (ALG).  
These entries tell the ALG that the identified subnet is allowed to make use of its  
services and what router the ALG should use to reach that subnet.  
Enter a VoIP Subnet Route  
1. Select System.  
2. Select System Overview.  
3. Select VoIP Subnet Routing.  
4. Enter the IP Network (e.g. 10.10.12.0).  
This is the IP address of the remote subnet containing the voice devices.  
5. Enter the Netmask (e.g. 255.255.255.0).  
This is the mask of the IP address of the subnet containing the voice  
devices.  
6. Enter the Gateway (e.g. 10.10.10.2).  
This is the IP address of the intermediate router that knows the return path  
to the remote subnet from the 4300T.  
7. Press Submit.  
Perform steps 1 through 7 for each remote subnet containing the voice devices.  
The 4300T is limited to a total of 20 different VoIP subnets.  
Note  
Delete a VoIP Subnet Route  
1. Select System.  
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Configuring the 4300T  
2. Select System Overview.  
3. Select VoIP Subnet Routing.  
4. Enter the IP Network (e.g. 10.10.12.0) .  
This is the IP address of the remote subnet containing the voice devices.  
5. Enter the Netmask (e.g. 255.255.255.0).  
This is the mask of the IP address of the subnet containing the voice  
devices.  
6. Enter the Gateway (e.g. 10.10.10.2) .  
7. This is the IP address of the intermediate router that knows the return  
path to the remote subnet from the 4300T.  
8. Select the Delete Subnet checkbox.  
9. Press Submit.  
Perform steps 1 through 8 for each remote subnet that you wish to delete.  
Configure IP Phones, IADs or Softphones  
After configuring the 4300T VoIP ALG the voice devices must be configured  
to point to the LAN interface of the 4300T as their signaling gateway and  
optionally as their TFTP server (if they use the TFTP protocol to retrieve their  
software images). The steps required to setup these devices differ from vendor  
to vendor. Using the DHCP server included in the 4300T will significantly  
simplify the setup of these devices if they are able to obtain their IP  
configuration via DHCP. Please consult the applicable users guide of each  
device for detailed instructions.  
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User Guide V2IU 4300T Converged Network Appliance  
Data Networking Configuration  
The 4300T provides static IP routing and two types of Network Address  
Translation (NAT) functions for data traffic. This section describes the use and  
configuration of these features.  
NAT for Data Traffic  
NAT allows hosts on a private internal network (the LAN side of the 4300T) to  
anonymously communicate with devices on an external network (the WAN  
side of the 4300T). The 4300T with NAT enabled will re-write outbound  
packet headers using public IP addresses in place of private IP addresses so  
that the private IP addresses are not exposed to the external network.  
Additionally, the ports used by the IP addresses are also changed as they  
traverse the 4300T. This is known as Port Address Translation (PAT) and  
provides an additional security measure. The 4300T maintains a table of these  
mappings so that return packets can be forwarded to the correct host on the  
private network.  
The 4300T provides two types of NAT functions: dynamic NAT and static  
NAT. Dynamic NAT allows many private IP addresses to be mapped to a  
single public IP address (using different port numbers of the public IP  
address). Static NAT maps private IP addresses and port. For example,  
mapping a public IP address to a specific machine on the private network  
responsible for receiving email.  
The 4300T ALG automatically handles NAT for voice devices.  
Note  
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Configuring the 4300T  
Configure Dynamic NAT  
Use Dynamic NAT when you have multiple PCs installed on the LAN side of  
the 4300T that require Internet or WAN access. Once Dynamic NAT is enabled  
the 4300T will automatically perform an address translation for all packets  
to/from the LAN side PCs.  
1. From the Configuration Menu select NAT.  
2. Use the Enable Lan NAT checkbox to enable or disable dynamic NAT.  
The default value for dynamic NAT is enabled.  
3. Press Submit.  
Configure Static NAT  
Use Static NAT when a server or PC located in the private network needs to be  
accessible from the external network. Some examples include a corporate web  
server, a mail server or an FTP server. In these instances, the 4300T statically  
maps the public IP address of each server to the actual private IP address of  
the server.  
In order for Static NAT to function dynamic NAT must be enabled.  
Note  
1. Select NAT.  
2. Enter the public and private IP addresses and ports to be mapped in  
Static NAT Client Entries using the following format:  
Protocol;PublicIPAddress/netmask-port>PrivateIPAddress-port  
For example, the entry “tcp;198.66.203.19-80>192.168.1.3-8080” will map  
all web traffic destined to public IP address 198.66.203.19 to the private  
webserver 192.168.1.3 port 8080. The public IP address of 198.66.203.19 is  
automatically created as a “subinterface” or “secondary address” on the  
WAN interface of the 4300T so that external hosts can reach the web  
server.  
Each entry should be placed on a new line.  
3. Press Submit.  
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User Guide V2IU 4300T Converged Network Appliance  
Delete a Static NAT entry  
1. Select NAT.  
2. To delete an IP address or a range of IP addresses highlight the entry in  
the Static NAT Client Entries list and press the Delete key on your  
keyboard.  
3. Press Submit.  
Static IP routing  
In addition to locally connected IP networks the 4300T can forward traffic for  
a remote data network by configuring a static route entry. Any packets  
destined for the remote data network will be forwarded to the specified  
gateway address in the entry.  
Configure the static route  
1. Select System.  
2. Select System Overview.  
3. Select Route.  
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Configuring the 4300T  
4. Select the Apply Route checkbox.  
5. Enter the IP Network address. This address is the remote data network  
you would like the 4300T to forward to the gateway. The hosts portion of  
the IP address should be set to “0”. For example, 10.10.20.0  
6. Enter the Netmask of the remote data network. For example,  
255.255.255.0  
7. Enter the Gateway IP address of the interface that will receive all packets  
destined for the remote data network.  
8. Press Submit.  
Delete the static route  
1. Select System.  
2. Select System Overview.  
3. Select Route.  
4. Remove the check in the Apply Route checkbox.  
5. Press Submit.  
Firewall Configuration  
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User Guide V2IU 4300T Converged Network Appliance  
The 4300T uses a Stateful Packet Inspection (SPI) firewall to protect data  
devices installed behind the LAN interface. Voice devices are protected by the  
4300T Application Layer Gateway (ALG) as described in VoIP Configuration.  
The firewall is enabled by default. The default behavior of the firewall is to:  
•
•
•
•
•
deny all traffic originating from the WAN  
allow all traffic originating from the LAN  
allow only return traffic for connections that originated from the LAN  
deny all traffic originating from the WAN to the 4300T itself  
allow all traffic originating from the LAN to the 4300T  
The default behavior can be modified using the basic and advanced settings  
fields on the firewall configuration page. We recommend that you use the  
4300T firewall, however it can be disabled if the 4300T is installed behind an  
existing legacy firewall.  
Enable or disable the firewall  
1. Select Firewall.  
2. Use the Enable Firewall checkbox to either enable or disable the firewall.  
3. Select Submit.  
Configure Basic settings  
To allow or deny HTTP, Telnet and SSH traffic originating from the WAN to  
the 4300T simply use the checkboxes provided in the basic settings area of the  
firewall configuration page. By default, access from the WAN into the 4300T  
is disabled.  
Denying HTTP, Telnet or SSH traffic from the WAN may result in losing  
management connectivity to the 4300T if you are configuring the system remotely  
using the WAN link.  
Warning  
1. Select Firewall.  
2. Use the three Allow access from WAN side checkboxes to enable or  
disable HTTP, Telnet, and/or SSH access from IP devices on the WAN  
side of the 4300T.  
3. Select Submit.  
Configure Advanced Settings  
A comprehensive security policy can be created using the advanced settings of  
the 4300T firewall. The policy actions that can be taken on any packet  
processed by the 4300T are summarized in the following table:  
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Configuring the 4300T  
Action  
Description  
Input format  
Allow TCP Port  
Allows traffic with the  
specified TCP port to  
terminate on the 4300T.  
*Valid values range from 1 through 65535. *Multiple  
entries are separated by a space  
*Range value specified by : character. For example,  
25:50 means perform the action on ports 25 through 50  
Allow UDP Port  
Deny Hosts (IP)  
Allows traffic with the  
specified UDP port to  
terminate on the 4300T.  
*Valid values range from 1 through 65535. *Multiple  
entries are separated by a space  
*Range value specified by : character. For example:  
25:50 means perform the action on ports 25 through 50  
Denies all traffic with the  
source IP address  
matching the specified  
hosts  
*Multiple entries are separated by a space  
*Classful IP addresses are assumed by default. For  
example: 192.168.3.1 uses a class c mask. Subnets can  
be specified using the / notation. E.g. 192.168.3.1/24  
Deny Hostwise  
TCP (IP-Port)  
Denies all traffic  
*Multiple entries are separated by a space  
matching the specified  
TCP port numbers and  
the specified source IP  
addresses  
*Port are specified using a - character. For example:  
192.168.3.1-23 for Telnet.  
*Port ranges are specified using a : character. For  
example: 192.168.3.1-23:50 means port 23 through 50  
*Classful IP addresses are assumed by default. For  
example: 192.168.3.1 uses a class c mask. Subnets can  
be specified using the / notation. E.g. 192.168.3.1/24  
Deny Hostwise  
UDP (IP-Port)  
Denies all traffic  
*Multiple entries are separated by a space  
matching the specified  
UDP port numbers and  
the specified source IP  
addresses  
*Port are specified using a - character. For example:  
192.168.3.1-23 for Telnet.  
*Port ranges are specified using a : character. For  
example: 192.168.3.1-23:50 means port 23 through 50  
*Classful IP addresses are assumed by default. For  
example: 192.168.3.1 uses a class c mask. Subnets can  
be specified using the / notation. E.g. 192.168.3.1/24  
Allow Hostwise  
TCP (IP-Port)  
Allows all traffic matching  
the specified TCP port  
numbers and the  
specified source IP  
addresses  
*Multiple entries are separated by a space  
*Port are specified using a - character. For example:  
192.168.3.1-23 for Telnet.  
*Port ranges are specified using a : character. For  
example: 192.168.3.1-23:50 means port 23 through 50  
*Classful IP addresses are assumed by default. For  
example: 192.168.3.1 uses a class c mask. Subnets can  
be specified using the / notation. E.g. 192.168.3.1/24  
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Allow Hostwise  
UDP (IP-Port)  
Allows all traffic matching  
the specified UDP port  
numbers and the  
specified source IP  
addresses  
*Multiple entries are separated by a space  
*Port are specified using a - character. For example:  
192.168.3.1-23 for Telnet.  
*Port ranges are specified using a : character. For  
example: 192.168.3.1-23:50 means port 23 through 50  
*Classful IP addresses are assumed by default. For  
example: 192.168.3.1 uses a class c mask. Subnets can  
be specified using the / notation. E.g. 192.168.3.1/24  
If a given packet does not match any of the configured rules, it is dropped.  
1. Select Firewall.  
2. Enter the desired Advanced Settings using the table above as a guide.  
3. Select Submit.  
Remove Advanced Setting Entries  
To remove an advanced firewall setting simply highlight the value in the entry  
box and delete it using the keyboard.  
1. Select Firewall.  
2. Highlight the entry to be deleted in the Advanced Settings list and press  
the Delete key on your keyboard.  
3. Press Submit.  
Traffic Management Configuration  
Traffic management is required to ensure high quality voice and video calls  
when voice, video, and data traffic share the same WAN link. Voice and video  
traffic must be prioritized for transmission over data traffic to meet the  
stringent jitter, latency and packet loss requirements for high quality voice and  
video. The 4300T:  
•
Automatically prioritizes voice and video traffic over data traffic to ensure  
high quality voice and video calls.  
•
Maximizes WAN link utilization by allowing data traffic to burst up to full  
line rate in the absence of voice and video calls.  
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Configuring the 4300T  
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Controls the data transfer rate of far-end WAN TCP devices to limit WAN  
link congestion.  
Supports network-based QoS applications by setting the TOS bits for all  
VoIP packets sent to the WAN and the LAN. TOS bits are used so that  
VoIP packets can be prioritized in the network by DiffServ enabled  
routers. The TOS bit value used by the 4300T is to “minimize delay and  
maximize throughput”, or 0xb8 hexadecimal. This value is set for all VoIP  
packets processed by the 4300T and overwrites any specific TOS bit  
configuration set by VoIP endpoints.  
•
Ensures that bandwidth allocated to new voice and video calls does not  
adversely affect the quality of existing active calls (Call Admission Control  
or CAC).  
The 4300T combines sophisticated traffic management mechanisms including  
classification, prioritization, queuing, rate limiting and CAC to ensure high  
quality voice and video calls. Fortunately the system manages this complexity  
for you and configuring traffic management is very straightforward:  
1. Enable traffic shaping.  
2. Specify the upstream and downstream bandwidth of your WAN link.  
3. Enable CAC.  
Please follow the steps below to configure and enable traffic management.  
Enable Traffic Shaping  
1. From the Configuration Menu, select Traffic Shaper.  
2. Select the Enable traffic shaper checkbox.  
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User Guide V2IU 4300T Converged Network Appliance  
3. Specify the upstream and downstream bandwidth of your WAN link  
4. Enter the WAN Downstream Bandwidth in Kbps.  
5. Enter the WAN Upstream Bandwidth in Kbps.  
For FT1/T1/E1 links the upstream and downstream bandwidths will always be the  
same value (the link is full-duplex).  
Note  
Optionally enable priority IP addresses  
VoIP traffic from devices that use the VoIP ALG function (phones, video  
stations, softphones on Pcs, etc.) are already marked as high priority and do  
not need to be manually configured in this list. This list is used to prioritize  
voice traffic from trunk interfaces of IP PBXs or other high priority devices that  
do not use the VoIP ALG function of the 4300T.  
>> Enter the IP address of other high priority devices in the priority IP  
Addresses box.  
You can enter individual IP addresses or a range using by appending a “-“  
character to the last octet. For example, 10.10.10.2-5 would specify  
10.10.10.2, 10.10.10.3, 10.10.10.4 and 10.10.10.5 as voice devices.  
Care must be taken to ensure that the IP addresses entered do not include data  
devices such as PCs or workstations. Traffic from these devices will be placed in  
the priority voice queue internal to the 4300T and burst up to full line rate. This will  
starve actual voice devices by consuming priority bandwidth and result in dropped  
calls, busy signals & poor voice quality.  
Warning  
Enable CAC  
The 4300T uses CAC to limit the number of active voice calls over the WAN  
link. This is necessary because a typical installation uses a ratio of 1:2 or 1:4  
active voice calls to voice devices on the assumption that 50% or 25% of all  
users are on the phone at the same time. These ratios are guidelines only and  
at times the number of concurrent calls may exceed the amount of WAN  
bandwidth available to process the calls. In this instance existing phone calls  
will experience poor quality or be dropped all together. To prevent this from  
occurring a typical voice installation will set a threshold for the maximum  
number of concurrent voice calls supported by the WAN access link. New call  
requests in excess of this threshold will receive the equivalent of a “fast busy”  
and the WAN link will not become oversubscribed.  
For IP Centrex installations the maximum number of concurrent voice calls is  
usually configured in the 4300T by enabling CAC. When the 4300T is  
deployed in IP PBX applications the maximum number of concurrent calls  
could be configured in the IP PBX. If the PBX is responsible for this setting you  
do not need to configure CAC in the 4300T. Please check with your IT  
administrator to determine if this is the case.  
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Configuring the 4300T  
Determining the maximum number of concurrent calls  
The maximum number of concurrent calls that can be supported by the WAN  
access link is calculated using the following formula:  
Max calls = (Maximum WAN upstream bandwidth * .85)/VoIP codec rate  
where,  
Maximum WAN upstream bandwidth = value entered in step D above (in  
Kbps)  
VoIP codec rate = 85.6Kbps for G.711 voice devices or 29.6Kbps for G.729 voice  
devices.  
The maximum WAN upstream bandwidth is multiplied by .85 in the formula  
above to reduce the total bandwidth available for voice calls by 15%. This  
reduction is necessary because the 4300T automatically reserves 15% of the  
total WAN bandwidth for low priority data traffic so that it is not starved  
completely. Starving data traffic completely would increase the number of  
retry attempts and exacerbate congestion on the link during periods of peak  
usage.  
Examples  
The maximum number of G.711 voice calls supported by a T1 (1.536 Kbps)  
WAN is calculated as follows:  
(1.536*.85)/85.6 = 15.3 or 15 total voice calls.  
The maximum number of G.711 voice calls supported by a 768Kbps fractional  
T1 WAN is calculated as follows:  
(768*.85)/85.6 = 7.6 or 7 total voice calls  
The maximum number of G.729 voice calls supported by a 256Kbps fractional  
T1 WAN is calculated as follows:  
(256*.85)/29.6 = 7.4 or 7 total voice calls  
After determining the maximum number of voice calls CAC is enabled as  
follows:  
1. Select the Enable Call Admission Control checkbox.  
2. Enter Maximum number of calls allowed as calculated above.  
3. Press Submit.  
A Closer Look at Traffic Management in the 4300T  
The traffic management mechanisms provided by the 4300T are designed to  
ensure high priority real-time voice and video traffic is processed before lower  
priority data traffic. At the same time, bandwidth not in use by voice and  
video traffic is made available so that data traffic can burst up to full line rate  
making efficient use of WAN bandwidth. Traffic management mechanisms  
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User Guide V2IU 4300T Converged Network Appliance  
are applied to traffic in both the upstream (LAN to WAN) and downstream  
(WAN to LAN) direction. Each direction is independent of the other and can  
support different size priority queues.  
Classifying  
High priority voice and video traffic generated by endpoint devices is  
automatically identified by the V2IU’s VoIP Application Layer Gateway.  
Other VoIP devices (not making use of the ALG) can be defined as  
high-priority by their IP address. The user configures these addresses into the  
priority list in the Traffic Shaper section of the 4300T web GUI.  
As the 4300T processes packets they are identified as either high or low  
priority based on this configuration. Packets identified as high priority are  
marked as such in the TOS bits of their IP header, allowing prioritization by  
downstream routers. The TOS field is set to 12 hexadecimal “minimize delay  
and maximize throughput” This value overwrites any prior value.  
Upstream Traffic Management  
The 4300T appliance uses a combination of Class Based Queuing and simple  
classless queuing to send data in the upstream direction. The Class Based  
Queue (CBQ) consists of two priority classes (high and low), a scheduler to  
decide when packets need to be sent, and a traffic shaper to rate-limit by  
delaying packets before they are sent. Each of these is described in more detail  
below.  
Priority classes  
Voice and video traffic is placed in the high-priority queue and data traffic is  
placed in the low-priority queue. The IP header TOS field of packets in the  
high-priority queue is set to “minimize delay and maximize throughput”.  
Scheduler  
High-priority data is polled before low priority data, thereby minimizing the  
latency for voice and video traffic. High-priority data is allowed to use up to  
85% of the total WAN bandwidth. Although preferential treatment is given to  
high-priority data, 15% of the WAN link is always reserved so that  
low-priority data is not starved.  
High priority data is polled before lower priority data to reduce overall latency  
for voice traffic.  
Traffic shaper  
To smooth bursts from high speed data links (typically from the LAN Ethernet  
heading to the WAN) the 4300T appliance uses a buffer that clocks data out at  
rates not exceeding automatically-calculated maximums. Low-priority data is  
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Configuring the 4300T  
clocked out at the WAN link’s full rate LESS the bandwidth currently being  
used for high-priority (ie voice) data. High-priority data is clocked out at the  
WAN’s full link rate. Any long-lasting burst condition in low-priority data  
will cause these packets to be delayed and, if necessary, dropped.  
Downstream Traffic Management  
Since the 4300T is the final transmitting device for WAN traffic in the upstream  
direction (LAN to WAN) it is easy to see how its QoS mechanisms can be  
applied to traffic it is transmitting to guarantee sufficient bandwidth for voice  
traffic. We have control over how packets are handed to the WAN interface.  
In the downstream direction (WAN to LAN) we are installed at the receiving  
end of a service provider link and therefore have no control over the amount  
of voice or data traffic being sent to us over the WAN interface. How then can  
we still guarantee the quality of in-bound voice traffic when it is entirely  
possible for an FTP session, for example, to consume the vast majority of  
downstream bandwidth?  
Fortunately this is possible by shaping on both the egress LAN and egress  
WAN ports of the 4300T appliance and leveraging the congestion avoidance  
mechanisms built into TCP. Essentially, data packets received by the 4300T’s  
WAN interface at a rate that exceeds the T1’s bandwidth LESS the bandwidth  
used for active voice calls are delayed (then dropped if necessary) before being  
forwarding on to its LAN interface. Similarly, data traffic sent back to the  
4300T for transmission to the WAN are also delayed (as described in the above  
section). This results in the WAN-based devices following the rules of TCP/IP  
congestion avoidance and slowing down their transmit rate. This technique is  
quite effective in practice, as end stations usually reduce their transmit rate  
before VoIP signaling has completed for new call setup.  
For example consider the scenario where there are no voice calls over a WAN  
link and multiple FTP sessions are consuming all available bandwidth:  
1. A new call request is received by the 4300T from the WAN.  
2. All signaling messages for the call are classified as voice traffic and  
therefore prioritized for transmission to the LAN before servicing the  
inbound FTP data.  
3. RTP traffic (the voice data within an ongoing VoIP session) is similarly  
classified as voice traffic and treated with priority.  
4. FTP data is buffered (or dropped) by the 4300T and return data, including  
the FTP ACKs, are also delayed. This results in a throttling of the  
transmit rate by the (far-end) FTP hosts, reducing overall WAN  
bandwidth consumption.  
Generally, excessive UDP traffic must be shaped in the service provider  
network, as UDP does not provide congestion avoidance mechanisms. The  
exception to this is in the case of RTP UDP-based messages for voice traffic.  
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Although RTP makes use of UDP the 4300T appliance is able to provide its  
own congestion avoidance mechanism for voice traffic using Call Admission  
Control (CAC).  
VoIP Survivability Configuration  
The high availability of voice services is a fundamental requirement for  
enterprises deploying their own IP telephony equipment or subscribing to  
hosted VoIP services. In both cases providing reliable communications to  
remote branch offices is costly usually involving the installation of local call  
processing servers or additional wide area network (WAN) links to these  
locations.  
Polycom’s VoIP survivability enhances the reliability of VoIP services to  
branch offices in a cost effective manner by providing local call switching in  
the event of WAN link failures or a loss of connectivity to network based call  
processing servers. VoIP survivability is an orderable software option for  
Polycom’s V2IU Series appliances. V2IU appliances are flexible networking  
devices that can also be configured to provide IP routing, optional T1 WAN  
link termination, resolve NAT/firewall traversal problems, ensure high  
quality voice using QoS, monitor voice call quality and provide  
comprehensive security for the LAN using a VoIP and data firewall.  
Key benefits and features of VoIP survivability  
Polycom’s VoIP survivability offers the following important benefits:  
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•
•
Continuity of voice services to branch offices during WAN link failures or  
failures in network based call processing servers  
Significant savings over alternative solutions requiring redundant call  
processing servers or multiple WAN links  
Simplified design that is easier to manage than alternative solutions  
requiring maintenance of multiple dial plans in distributed call processing  
servers and complex routing  
Survivability features:  
•
Application layer based monitoring of call processing servers to  
determine connectivity  
•
Automatic detection of loss of connectivity to call processing servers  
caused by WAN link failures, network congestion or call processing server  
software failure  
•
•
Automatic return of call control to network based call processing servers  
once connectivity has been restored  
Configurable timers to determine call processing server connectivity  
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Configuring the 4300T  
•
•
•
Call processing server connectivity status indicators  
Support for multiple call processing servers using DNS  
Reporting of the currently active call processing server in environments  
using multiple call processing servers  
•
Local call switching between VoIP endpoints and premises based PSTN  
gateways during WAN link failures or other failures that prevent  
connectivity to network based call processing servers  
•
•
Calling features such as transfer, hold and conference are provided by  
V2IU Series appliances  
Simplified setup that creates a local dial plan in the V2IU appliance by  
monitoring traffic to network based call processing servers  
How survivability works  
The V2IU appliance automatically creates a local dialing plan by monitoring  
the registration requests sent by LAN based SIP user agents as they register  
with the network based call processing server. In creating this dial plan the  
V2IU appliance now has knowledge of all local SIP user agents installed on its  
LAN interface. This dial plan will be used during fallback mode of operation  
when the V2IU appliance provides local call switching between user agents  
and/or a LAN side PSTN gateway.  
V2IU appliances continuously monitor the status of connectivity to network  
based call processing servers using application layer heartbeat messages.  
Configuration settings in V2IU appliances control how often messages are sent  
to the call processing server and how quickly the server will be declared  
unreachable in the event of a failure. The use of application layer messages  
provides the added benefit of detecting the failure condition where an V2IU  
appliance has IP connectivity to the call processing server but the call  
processing server software itself is not functioning properly.  
Once a call processing server has been declared unreachable V2IU appliances  
enter fallback mode and perform call processing for local SIP user agents. A  
SIP PSTN gateway can also be installed at the branch office on the LAN side of  
the V2IU appliance and used for inbound and outbound calling during  
fallback mode. To maximize utilization of this gateway it can also be used  
when call switching is being performed by the network based call processing  
server.  
Once connectivity to the network based call processing server is restored the  
V2IU appliance will automatically turn control of all subsequent call requests  
over to the softswitch. Calls in progress that were established while the V2IU  
appliance was in fallback mode will not be disrupted when connectivity is  
restored to the network based call processing server.  
Redundant or multiple call processing servers can be used in conjunction with  
V2IU Series appliances to further enhance the availability of voice services.  
V2IU appliances will use DNS SRV records from a DNS server to obtain a  
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User Guide V2IU 4300T Converged Network Appliance  
prioritized list of available network based call processing servers. The V2IU  
appliance using periodic messages monitors each server and the highest  
priority server that is currently reachable will be used for call processing. This  
feature can also be used to load balance or distribute calls among multiple  
servers however state replication is required by the call processing servers to  
provide full redundancy.  
Platform Support  
V2IU Converged Network Appliances  
•
•
•
4300T Series  
5300 Series  
6400 Series  
IP Phones  
•
•
Polycom IP500 & IP600  
Cisco  
PSTN Gateways  
Audiocodes MP-104/108  
•
Configuring VoIP Survivability in V2IU Appliances  
Configuring VoIP survivability in V2IU appliances consists of the following  
tasks:  
1. Enable VoIP survivability.  
2. Configure call processing server reachability settings (optional).  
3. Specify the number of digits to use for local dialing (optional).  
4. Configure the IP address of the local LAN side PSTN gateway (optional).  
5. Configure call processing server redundancy (optional).  
Please note that this configuration requires that you have completed the basic  
installation of the V2IU appliance including interface, IP, traffic management  
and VoIP configurations. Information regarding these tasks can be found in  
the “info” section of the V2IU appliance, or the User Manual.  
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Configuring the 4300T  
Step 1 – Enable VoIP Survivability  
1. Log into the V2IU appliance using a Netscape or Internet Explorer web  
browser.  
2. Select System.  
3. Select Survivability.  
4. Select the Enabled radio button under the Survivability Configuration  
section of the web page.  
5. Press Submit.  
The V2IU appliance is now configured to check the connectivity of the call  
processing server and will automatically perform local call switching if the  
server becomes unavailable.  
Step 2 – Configure call processing server reachability settings (optional)  
The reachability settings control how often messages are sent to network  
based call processing servers and how quickly a server will be declared  
unreachable or reachable. These settings can be changed to match the  
particular needs of your environment by using the following steps:  
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1. Log into the V2IU appliance using a Netscape or Internet Explorer web  
browser.  
2. Select System.  
3. Select Survivability.  
4. Enter the desired values for Time between heartbeat messages, Time to  
declare heartbeat lost, Number of lost messages to declare alarm and  
Number of received messages to clear alarm in the Softswitch  
Reachability section of the web page.  
5. Press Submit.  
The reachability settings are used to determine when the V2IU appliance  
provides local call switching by entering fallback mode and when it returns  
call control to network based call processing servers. The definitions of the  
reachability settings are as follows:  
Time between heartbeat messages - The number of seconds between each  
heartbeat message sent to the call processing servers to determine  
connectivity.  
Time to declare heartbeat lost – The number of seconds that the V2IU appliance  
will wait before declaring a response to a heartbeat message lost.  
Number of lost messages to declare alarm - the number of consecutively lost  
responses to heartbeat messages required for the V2IU appliance to declare a  
loss of connectivity to the network based call processing server.  
Number of received messages to clear alarm - the number of consecutively  
received responses to heartbeat messages required for the V2IU Appliance to  
declare successful connectivity to the network based call processing server.  
The formula used to determine the maximum time for the V2IU appliance to  
declare a loss of connectivity to a call processing server is: maximum time =  
(X * Y) + Z, where,  
X = Time between heartbeat messages  
Y = Number of lost messages to declare alarm  
Z = Time to declare a heartbeat lost  
The default value for X, Y and Z in the V2IU appliance is 5. Therefore, the  
default maximum time to declare a call processing server unreachable is 30  
seconds or ((5*5) + 5).  
Step 3 - Specify the number of digits to use for local dialing  
This field is the number of digits that the V2IU appliance will use for dialing  
when providing local call switching. By default the V2IU appliance will use 4,  
7 and 10 digit dialing. Please follow the steps below if you would like to use a  
different number of digits:  
1. Log into the V2IU appliance using a Netscape or Internet Explorer web  
browser.  
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Configuring the 4300T  
2. Select System.  
3. Select Survivability.  
4. Enter the number of digits for local dialing in the Local Dial Plan section  
of the web page.  
5. Press Submit.  
Step 4 - Configure the IP address of the local LAN side PSTN gateway (optional)  
This step should be used if you have installed a PSTN gateway at the branch  
office location. In this case the IP address of the LAN side PSTN gateway must  
be configured in the V2IU appliance to support inbound and outbound PSTN  
calling while in fallback mode of operation. This gateway resource may also  
be used by network based call processing servers when the WAN link is  
operational. In fallback mode when the call processing server cannot be  
reached the V2IU appliance will route outbound calls to the LAN side PSTN  
gateway if a number is dialed that is not stored in its local dial plan (e.g. a local  
SIP user agent).  
1. Log into the V2IU appliance using a Netscape or Internet Explorer web  
browser.  
2. Select System.  
3. Select Survivability.  
4. Press Submit.  
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User Guide V2IU 4300T Converged Network Appliance  
Step 5 - Configure call processing server redundancy  
If you will be using multiple network based call processing servers then you  
will need to enable server redundancy and specify the time between DNS  
lookups in the V2IU appliance. Enabling redundancy allows a DNS server to  
provide a list of multiple call processing servers to the V2IU appliance in the  
answers to SRV lookups. Each server in the list will be monitored using  
periodic messages by the V2IU appliance and the highest priority server that  
is currently reachable will be used for signaling. The V2IU appliance uses the  
reachability settings described in step 2 to determine the status of remote  
servers and remove inoperable servers from the list.  
Triggers can also be used by the V2IU appliance to determine when to forward  
call requests to a secondary server in the list. A trigger is set when a configured  
number of resends are received by the V2IU appliance from a SIP user agent  
attempting to place a call. When initiating a call a SIP user agent will send an  
INVITE message to the V2IU appliance that will then be forwarded to the  
primary server. In the event that the primary server fails before a reachability  
alarm has been declared using the heartbeat messages the user agent will  
resend INVITE messages until the trigger condition is met. At this point the  
V2IU appliance will forward the call request on to the secondary server in the  
list. Please use the following steps to enable redundancy and set triggers:  
1. Log into the V2IU appliance using a Netscape or Internet Explorer web  
browser.  
2. Select System.  
3. Select Survivability.  
4. Enter the Time between DNS lookups (in seconds) in the Softswitch  
Reachability section of the web page.  
5. Select Enable SIP server redundancy in the Softswitch Redundancy  
Settings section of the web page.  
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Configuring the 4300T  
6. Select Trigger on resends in the Softswitch Redundancy Settings section  
of the web page.  
7. Enter the Number of resends to declare alarm.  
8. Press Submit.  
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4
System Diagnostics  
The 4300T provides a powerful set of diagnostic information, troubleshooting  
tools and utilities for system maintenance to network operators.  
Viewing Software Version, Hardware Platform and the LAN  
MAC Address  
The software version, hardware platform, and LAN MAC address are  
common pieces of information requested by technical support and are  
accessed directly through the System page of the 4300T web GUI.  
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User Guide V2IU 4300T Converged Network Appliance  
Viewing the ALG registration code  
You will also find a link to the ALG registration code on the System page. The  
registration code enables the ALG and is pre-installed at the factory. If the  
registration code is inadvertently deleted you can re-enter the code using the  
following steps:  
Enter the Registration Code  
1. Select System.  
2. Select registration code.  
3. Select Edit Registration Code.  
4. Enter the Registration Code.  
The registration code can be found on the sticker located on the bottom of  
the 4300T.  
5. Press Submit.  
Viewing Networking Information  
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System Diagnostics  
To view the networking configuration and status of the 4300T proceed to the  
Network Information page as follows:  
1. Select System.  
2. Select System Overview.  
3. Select Network Information.  
The following networking information is displayed:  
Routing Information  
The system routing table contains the static routes for hosts and networks that  
are configured on the 4300T. If just the LAN and WAN IP addresses have been  
configured there will be four lines displayed:  
•
•
•
•
The private subnet will be associated with the LAN interface.  
A public subnet present for the WAN interface.  
An entry for the 4300T loopback interface  
The 4300T’s default gateway forwarding to the WAN interface  
Additional lines may be displayed depending on the contents of the Route and  
VoIP Subnet Routing pages. Each of the entries on these pages will cause an  
additional entry in the routing table.  
Link Status  
Link Status displays the status of the ethernet interfaces. Ethernet  
autonegotiation is often unreliable, especially between different vendors or  
old and new networking equipment. Failure of autonegotiation is generally  
not a cause for concern. However, if the negotiated rates change intermittently  
or the link is reported as down or no link, the link rate may need to be set  
manually on the Set Link Rate page. Intermittent data and voice outages may  
be caused by link flapping when the two endpoints of the Ethernet cable  
cannot reach agreement using autonegotiation". If the link rate is set  
manually, ensure that the device at the far end of the connection can  
communicate at the desired rate. Incompatible rates can cause a loss of  
communication with the 4300T.  
Link status for the Ethernet ports is displayed via the LEDs adjacent to each  
physical port.  
Interface Information  
The specific status and configuration information for the system interfaces is  
displayed in the Interface Information section. HDLC0 shows the interface  
statistics for the T1/E1 WAN link. ETH0 shows the interface statistics for the  
internal LAN interface between the 4300T processor and the built-in LAN  
switch. Interface statistics for the external LAN ports are not displayed.  
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User Guide V2IU 4300T Converged Network Appliance  
The interface statistics can point to areas of congestion in the network. If the  
errors statistic is a few percent or more of the total packets sent it may be an  
indication of excessive congestion on the network interface. If the congestion  
is not corrected the quality of voice calls will be affected. The topology of the  
network attached to the network interface with the errors should be examined  
and modified to better segment and isolate network traffic.  
Viewing Advanced System Information  
To view advanced system information for the 4300T proceed to the System  
Information page as follows:  
1. Select System.  
2. Select System Overview.  
3. Select System Information.  
The following system information is displayed:  
System Uptime  
System Uptime displays the current time, the amount of time elapsed since the  
last system reboot, and the system load averages for the past 1, 5, and 15  
minutes. Uptime can help trace when a power outage may have interrupted  
service. Load averages that remain greater than 2 indicate excessive system  
loading. Partitioning voice traffic using a second system may be required.  
Process Information  
Displays the active processes in the 4300T.  
Memory Usage  
Displays detailed memory allocation information that may be of use to  
technical support.  
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System Diagnostics  
System Logging Messages  
Displays information logged during system boot and normal operation.  
Logging messages may indicate unauthorized attempts to access the 4300T,  
process restart messages, and excessive resource utilization messages.  
Passive Voice Call Monitoring  
The 4300T monitors live voice calls and performs objective speech quality  
assessment. This information enables the network operator to assess voice  
quality for the purposes of SLA tracking or problem isolation. Mean Opinion  
Score (MOS) results for RTP streams in both directions of a VoIP call are  
calculated at call completion. This information along with the IP addresses of  
the VoIP endpoints supporting the call are logged locally and optionally sent  
to an external syslog server (see Enable Remote System Logging <<<find this  
heading>>> for instructions on enabling logging to a remote syslog server).  
Additionally the 4300T will generate a real-time message for any MOS values  
calculated less than 2.5 (considered poor quality) during an active call.  
Voice call quality information is found locally in the System Logging Messages  
section of the System Information page and a sample output is provided  
below.  
Accessing Troubleshooting Tools  
The 4300T provides convenient test tools to facilitate problem isolation and  
resolution. A network operator can use these tools to verify connectivity  
to/from the 4300T as well as trace datapaths to endpoints throughout the  
network.  
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User Guide V2IU 4300T Converged Network Appliance  
Verify Registered Voice and Video Devices  
The 4300T maintains a list of all registered voice and video devices called a  
clients list so that it can properly route voice and video calls. At startup, voice  
and video devices register their IP addresses with the 4300T. The 4300T then  
registers on behalf of the voice and video devices by providing its own WAN  
IP address to the softswitch, gatekeeper, or IP PBX. If a user or network  
operator reconfigures the IP address of the voice or video device (ie. an IP  
phone or IAD), it will re-register the new address with the 4300T. In this  
instance voice and video calls may be routed improperly because the 4300T  
clients list contains out of date information.  
To update the clients list simply highlight and delete the stale entry using the  
following steps:  
1. Select System.  
2. Select System Overview.  
3. Select Clients List.  
4. Proceed to the appropriate signaling section, highlight the duplicate  
entry or entries and press the delete key on the keyboard  
5. Press Submit.  
6. Restart the VoIP ALG by following the instructions found in Restarting  
Networking Processes.  
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System Diagnostics  
Performing a Ping Test  
A ping test is the most common test used to verify basic connectivity to a  
networking device. Successful ping test results indicate that both physical and  
virtual path connections exist between the 4300T and the test IP address.  
Successful ping tests do not guarantee that all data traffic is allowed between  
the 4300T and the test IP address but is useful to verify basic reachability.  
The following steps are used to perform a ping test:  
1. Select System.  
2. Select System Overview.  
3. Select Network Test Tools.  
4. Enter the IP Address to Ping.  
5. Press Ping.  
The Network Test Tools page will be refreshed and the results of the ping test  
are displayed (this may take several seconds). The Reset button is used to clear  
the IP address entry used in step D above.  
Performing a Traceroute Test  
A traceroute test is used to track the progress of a packet through the network.  
The test can be used to verify that data destined for a WAN device reaches the  
remote IP address via the desired path. Similarly, internal network paths can  
be traced over the LAN to verify the local network topology. The following  
steps are used to perform a traceroute test:  
1. Select System.  
2. Select System Overview.  
3. Select Network Test Tools.  
4. Enter the IP address to Trace.  
5. Select either the WAN or the LAN radio button  
6. Press Traceroute.  
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User Guide V2IU 4300T Converged Network Appliance  
The Network Test Tools page will be refreshed and the results of the traceroute  
test are displayed (this may take several seconds). The Reset button is used to  
clear the IP address entry used in step D above.  
Restarting Networking Processes  
In extreme circumstances while troubleshooting you may be asked to restart  
the networking processes including the VoIP ALG in the 4300T by technical  
support. Use the following steps to restart the networking processes:  
1. Select System.  
2. Select System Overview.  
3. Select Networking Restart.  
4. Press restart.  
Restarting network services will interrupt the system for up to a minute. All voice  
and data sessions currently in progress will be interrupted.  
Warning  
Rebooting the 4300T  
In extreme circumstances while troubleshooting you may be asked to reboot  
the 4300T by technical support. Please use the following steps to reboot the  
system:  
1. Select System.  
2. Select System Overview.  
3. Select Rebooting System.  
4. Press reboot.  
Alternatively a reset can be performed locally by temporarily disconnecting  
the power cable from the 4300T.  
Rebooting the system will interrupt services for a few minutes. All voice and data  
sessions currently in progress will be interrupted.  
Warning  
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5
Saving and Restoring the 4300T  
Configuration  
The 4300T stores all configuration information for the system in a series of  
individual files that reside in local flash memory. These files are read at boot  
time to determine the configuration identity of the 4300T and then stored in  
RAM as “running” state. As you configure the 4300T the submit command  
writes the configuration changes to both RAM and flash so that the files stored  
in flash are always up to date with the running state of the system.  
The 4300T provides a utility that enables you to copy the individual  
configuration files stored in flash to a single, consolidated backup file. This  
single file can then be used as a backup for the entire system and restored at a  
later date if necessary. Multiple backup files with different system  
configurations can also be created and stored locally in the 4300T or on remote  
TFTP servers.  
No more than 2 backup files can be stored in the 4300T’s flash due to size  
constraints. Also, it is recommended that you create a backup file after any  
configuration changes are made to the 4300T. This is to prevent the loss of any  
configuration changes made since your last backup in the event that you must  
restore the system configuration.  
Note  
Backup file operations are performed in the 4300T CLI using the ewn  
command.  
The ewn Command  
The syntax for the ewncommand is as follows:  
USAGE:  
ewn help|list  
ewn save|load|delete [file name]  
ewn upload|download [file name] [ip address]  
where file name must use extension .conf1 or .conf2  
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User Guide V2IU 4300T Converged Network Appliance  
The ewncommand can be used with a local terminal connection or remotely  
using SSH.  
1. Use a NULL modem cable to connect to serial port 1 of the 4300T  
2. Use a terminal emulator such as Hyperterminal set to a baud rate of 9600,  
8, 1 and none (databits, stop bits and parity)  
Alternatively you can connect to the 4300T remotely using SSH:  
1. Logon as root  
2. Enter the password  
Once you are at the command prompt (#) you can create the backup file, store  
it to local flash, copy it to a remote TFTP server, copy it from a remote TFTP  
server, delete it, load it or list all available backup files.  
Create a Backup File and Save in Local Flash  
# ewn save <filename>  
Saves the current running configuration.  
Filename format (must use extension .conf1 or .conf2):  
<filename1>.conf1  
<filename2>.conf2  
<filenameX> can be a combination of both letters and characters. For example,  
EWN30_041503.conf1 or location1_E30.conf2. Trying to use any other  
filename format will result in the error message:  
“EWN_ERROR_BAD_FILE_NAME”.  
The “.conf” extensions have special significance. If you save a configuration with  
<filename-new>.conf1, then any existing <filename-old>.conf1 will be overwritten  
with the new one.  
Warning  
Copy a Backup File to a Remote TFTP Server  
# ewn upload <filename> <tftp server IP Address>  
Copy a backup file from the 4300T to a TFTP server.  
Download a Backup File from a Remote TFTP Server  
# ewn download <filename> <tftp server IP Address>  
Download a backup file from a TFTP server to the V2IU.  
List the Available Backup Files  
# ewn list  
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Saving and Restoring the 4300T Configuration  
List all backup files stored in FLASH. If no file has been saved, the command  
will only return the # prompt.  
Delete a Backup File  
# ewn delete <filename>  
Delete the backup file specified in the filename.  
Load a Backup File so that it Becomes the Running Configuration  
# ewn load <filename>  
Loads the specified backup file into RAM and makes it the active running  
configuration.  
Issuing this command will automatically restart the 4300T and therefore interrupt  
any active voice calls and data sessions.  
Warning  
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User Guide V2IU 4300T Converged Network Appliance  
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6
Upgrading the 4300T  
This chapter describes how to upgrade your 4300T to the latest software  
release available from Polycom.  
It is recommended that you reboot the 4300T prior to performing the upgrade.  
This is to make sure there is enough dynamic memory available to handle the  
upgrade process.  
When you update your software telephone services will be unavailable for several  
minutes. It is therefore advised that upgrades be performed during a maintenance  
window when telephone traffic can be interrupted.  
Warning  
Upgrade Procedure for Software Revision 1.3.11 or Later  
Use this procedure if your 4300T is running software revision 1.3.11 or later.  
The software version can be found on the System page of the web GUI.  
1. Select System.  
2. Select System Overview.  
3. Select Upgrade firmware.  
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4. Enter the Download Server address of ftp.support.polycom.com.  
5. Enter the Filename: flash.bin  
6. Press Submit.  
You can follow the progress of the upgrade by selecting the refresh the  
upgrade status link.  
Do not change the configuration or power off the device until the write is 100  
percent complete. The 4300T may become unusable if the write is interrupted. The  
flash write can take up to 5 minutes depending on the speed of the download  
server.  
Warning  
The system will automatically restart after the new image has been loaded.  
7. Verify that the upgrade was successful by checking the software revision  
number found on the System page.  
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Appendix  
Troubleshooting Tips  
This section contains possible solutions to problems regarding the installation  
of the 4300T.  
I am having trouble reaching the Internet through the 4300T.  
We recommend connecting a PC directly (or via a switch) to the LAN port of  
the 4300T. The default LAN IP address of the 4300T is 192.168.1.1 so please be  
sure that the IP address of the PC is on the same network (eg. 192.168.1.2).  
Once you have connected please verify that the IP configuration information  
in the Network page is correct. Some other items to try:  
•
•
Ping the WAN interface of the 4300T from the attached PC  
Ping the DNS server for your network. Sometimes connectivity problems  
occur when the domain name being used cannot be mapped to the proper  
IP address.  
•
•
Ping a well known address on the Internet.  
Ping the IP address of the remote softswitch or IP PBX.  
I do not receive dial tone when going “off hook” or my phone will not register  
with the softswitch/IP PBX.  
•
•
Verify the configurations on the VoIP ALG page.  
Check that the ALG registration code is configured.  
1. Select System.  
2. Select registration code.  
•
Attempt to ping the softswitch using the ping tool in the web GUI.  
3. Select System.  
4. Select System Overview.  
Appendix - 1  
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User Guide V2IU 4300T Converged Network Appliance  
5. Select Network Test Tools.  
6. Enter the softswitch address in the IP Address to Ping field.  
7. Press Ping.  
Specifications  
WAN Ports  
LAN Ports  
Serial Ports  
Dimensions  
Weight  
1xT1 CSU/DSU or 10/100 Ethernet  
4x10/100 Ethernet (switched)  
1xRS-232  
Height (1.7”), Width (10”), Depth (7”)  
2 lb  
Power  
12V 3A  
1 Year  
Warranty  
Appendix - 2  
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Appendix  
Neighboring Path Navigator Gatekeeper support  
Example 1  
In this example, there are two neighbored Path Navigator gatekeepers, one  
behind an EdgeMarc, on a private network, and the other on the public  
network.  
Appendix - 3  
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User Guide V2IU 4300T Converged Network Appliance  
Path Navigator  
GK X = 67.100.100.100  
Setup a Neighbor With  
WAN A = 69.52.177.69  
= Neighboring Gatekeepers  
VSX 7000  
GK X = 67.100.100.100  
V500  
IP  
Cloud  
IP = 90.186.171.200  
e164 = 555  
IP = 67.100.100.240  
e164 = 2040  
Not Registered to Any GK  
Alias = V500  
GK = 67.100.100.100  
WAN A  
69.52.177.69  
4300T A  
(Use LAN Side GK)  
LAN Side GK = 192.168.2.80  
LAN A  
192.168.2.1  
Path Navigator  
GK A = 192.168.2.80  
Step 1: Setup a Neighbor  
With LAN A = 192.168.2.1  
Step 2: Setup a Neighbor  
PVX 104  
192.168.2.104  
e164 = 104  
Alias = epd  
PVX 105  
192.168.2.105  
e164 = 105  
With GK X = 67.100.100.100  
GK A = 192.168.2.80  
Alias = epe  
GK = 192.168.2.80  
GK = 192.168.2.80  
EMV2006  
All V2IU’s running VOS Version 5.8.0  
PathNavigator running version 7.00.01 (7.00.01.0185)  
Appendix - 4  
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Appendix  
V2IU A  
1. Setup the Network settings.  
a
b
c
LAN interface IP address = 192.168.2.1  
LAN interface subnet = 255.255.255.0  
WAN interface IP address = 69.52.177.69  
WAN interface subnet = 255.255.255.0  
Default Gateway = 69.52.177.1  
d
e
2. Setup the VoIP ALG – H323 settings  
V2IU A is set to use a LAN side gatekeeper, which is 192.168.2.80  
a
b
Gatekeeper Mode = LAN/Subscriber side gatekeeper  
LAN / Subscriber side Gatekeeper Address = 192.168.2.80  
Gatekeeper A  
1. On the Path Navigator A, setup the IP configuration as  
a
b
c
IP address = 192.168.2.80  
Subnet mask = 255.255.255.0  
Default Gateway = 192.168.2.1  
2. Setup two Neighboring Gatekeeper profiles.  
(Configuration – Neighboring Gatekeeper – Neighbors – Add)  
a
In the Add Neighbor Gatekeeper dialog box, add the IP address of the  
LAN side V2IU A ( 192.168.2.1 ). Click OK.  
The reason for setting up the Neighboring statement with the LAN side of the V2IU  
A is to enable outbound dialing from standalone endpoints on the public network.  
Note  
a
In the Add Neighbor Gatekeeper dialog box, add the IP address of the  
Path Navigator on the public network , GK X (67.100.100.100). Click  
OK.  
Gatekeeper X  
1. Setup the Neighbor Gatekeeper profile.  
(Configuration – Neighboring Gatekeeper – Neighbors – Add)  
In the Add Neighbor Gatekeeper dialog box, add the IP address of the  
WAN side V2IU A (69.52.177.69). Click OK.  
Appendix - 5  
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User Guide V2IU 4300T Converged Network Appliance  
Endpoints  
1. Configure the video endpoints as shown in the diagram above.  
The PVX 104, 105 endpoint’s gatekeeper is GK A, 192.168.2.80  
The V500 is a registered to GK X, 67.100.100.100.  
The VSX7000 is a standalone and is not registered to any gatekeeper.  
Dialing plans  
Source  
Destination  
Dial string  
PVX 104  
PVX 105  
(e164)  
105  
epe  
(H323 alias)  
PVX 105  
V500  
PVX 104  
PVX 104  
V500  
(e164)  
104  
epd  
(H323 alias)  
(e164  
104  
epd  
(H323 alias)  
PVX 104 /  
PVX 105  
(e164)  
2040  
V500  
(H323 alias)  
(string) [email protected]  
VSX 7000  
(IP + Ext)  
PVX 104  
PVX 105  
66.52.177.69 , 104  
66.52.177.69 , 105  
PVX 104 /  
PVX 105  
(string)  
VSX7000  
[email protected]  
Appendix - 6  
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Appendix  
Example 2  
In this example, there are two neighbored Path Navigator gatekeepers, one  
behind one V2IU, on a private network, and the other behind another V2IU,  
on a separate private network.  
There is also a codec behind a third V2IU, just as an example. V2IU C is just a  
remote V2IU running in the embedded gatekeeper mode.  
Viewstation  
IP = 10.10.10.10  
= Neighboring Gatekeepers  
e164 = 444  
gk = 10.10.10.1  
VSX 7000  
IP = 90.186.171.200  
e164 = 555  
LAN C  
WAN C  
10.10.10.10  
4300T C  
(Use embedded gk)  
not registered to any GK  
64.186.171.51  
IP  
4300T A  
4300T B  
(Use LAN side gk)  
(Use LAN side GK)  
Cloud  
LAN side GK = 192.168.2.80  
LAN side GK = 192.168.1.45  
WAN A  
WAN B  
64.10.10.10  
69.52.177.69  
192.168.2.1  
GK B = 192.168.1.45  
GK A = 192.168.2.80  
Step 1: Setup a Neighbor  
With LAN B = 192.168.1.1  
Step 2: Setup a Neighbor  
With WAN A = 69.52.177.69  
LAN A  
Step 1: Setup a Neighbor  
With LAN A = 192.168.2.1  
Step 2: Setup a Neighbor  
With WAN B = 64.10.10.10  
LAN B  
192.168.1.1  
Path Navigator  
Path Navigator  
PVX 104  
192.168.2.104  
e164 = 104  
Alias = epd  
PVX 105  
192.168.2.105  
e164 = 105  
Alias = epe  
PVX 101  
PVX 102  
192.168.1.102  
e164 = 102  
Alias = epb  
192.168.1.101  
e164 = 101  
Alias = epa  
GK B = 192.168.1.45  
gk = 192.168.2.80 gk = 192.168.2.80  
GK A = 192.168.2.80  
gk = 192.168.1.45 gk = 192.168.1.45  
EMV2007  
All V2IU’s running VOS Version 5.8.0  
PathNavigator running version 7.00.01 (7.00.01.0185)  
Appendix - 7  
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User Guide V2IU 4300T Converged Network Appliance  
V2IU A  
1. Setup the Network settings.  
a
b
c
LAN interface IP address = 192.168.2.1  
LAN interface subnet = 255.255.255.0  
WAN interface IP address = 69.52.177.69  
WAN interface subnet = 255.255.255.0  
Default Gateway = 69.52.177.1  
d
e
2. Setup the VoIP ALG – H323 settings  
V2IU A is set to use a LAN side gatekeeper, which is 192.168.2.80  
a
b
Gatekeeper Mode = LAN/Subscriber side gatekeeper  
LAN / Subscriber side Gatekeeper Address = 192.168.2.80  
Gatekeeper A  
1. On the Path Navigator (GK A), setup two Neighboring Gatekeeper  
profiles.  
(Configuration – Neighboring Gatekeeper – Neighbors – Add)  
a
In the Add Neighbor Gatekeeper dialog box, add the IP address of the  
LAN side V2IU A (192.168.2.1). Click OK.  
The reason for setting up the Neighboring statement with the LAN side of the V2IU  
A is to enable outbound dialing to standalone endpoints on the public network.  
Note  
Note  
a
In the Add Neighbor Gatekeeper dialog box, add the IP address of the  
WAN side V2IU B (64.10.10.10). Click OK.  
The reason for setting up the Neighboring statement with the WAN side of the V2IU  
B is to neighbor with the Path Navigator that is on the LAN side of V2IU B.  
Appendix - 8  
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Appendix  
Network Settings  
Appendix - 9  
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User Guide V2IU 4300T Converged Network Appliance  
VoIP ALG – H323 Settings  
Appendix - 10  
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Appendix  
Appendix - 11  
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User Guide V2IU 4300T Converged Network Appliance  
V2IU B  
1. Setup the Network settings.  
(Configuration -- Neighboring Gatekeeper -- Neighbors -- Add)  
a
b
c
LAN interface IP address = 192.168.1.1  
LAN interface subnet = 255.255.255.0  
WAN interface IP address = 64.10.10.10  
WAN interface subnet = 255.255.255.0  
Default Gateway = 64.10.10.1  
d
e
2. Setup the VoIP ALG – H323 settings  
V2IU B is set to use a LAN side gatekeeper, which is 192.168.1.45.  
a
b
Gatekeeper Mode = LAN / subscriber side gatekeeper  
LAN / subscriber side Gatekeeper Address = 192.168.1.45  
Gatekeeper B  
3. On the Path Navigator (GK B), setup two Neighboring Gatekeeper  
profiles.  
a
In the Add Neighbor Gatekeeper dialog box, add the IP address of the  
LAN side V2IU B (192.168.1.1). Click OK.  
The reason for setting up the Neighboring statement with the LAN side of the V2IU  
B is to enable outbound dialing to standalone endpoints on the public network.  
Note  
Note  
a
In the Add Neighbor Gatekeeper dialog box, add the IP address of the  
WAN side V2IU A (69.52.177.69). Click OK.  
The reason for setting up the Neighboring statement with the WAN side of the V2IU  
A is to neighbor with the Path Navigator that is on the LAN side of V2IU A.  
Appendix - 12  
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Appendix  
Network Settings  
Appendix - 13  
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User Guide V2IU 4300T Converged Network Appliance  
VoIP ALG – H323 settings  
Appendix - 14  
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Appendix  
Appendix - 15  
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User Guide V2IU 4300T Converged Network Appliance  
V2IU C  
1. Setup the Network settings.  
a
b
c
LAN interface IP address = 10.10.10.1  
LAN interface subnet = 255.255.255.0  
WAN interface IP address = 64.186.171.51  
WAN interface subnet = 255.255.255.0  
Default Gateway = 64.186.171.1  
d
e
2. Setup the VoIP ALG – H323 settings  
V2IU C is set to use a Embedded gatekeeper.  
Network Settings  
Appendix - 16  
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Appendix  
VoIP ALG – H323 Settings  
Appendix - 17  
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User Guide V2IU 4300T Converged Network Appliance  
Appendix - 18  
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Appendix  
Endpoints  
1. Configure the video endpoints as shown in the diagram above.  
The PVX 101 , 102 endpoint’s gatekeeper = 192.168.1.45  
The PVX 104 , 105 endpoint’s gatekeeper = 192.168.2.80  
The Viewstation’s gatekeeper = 10.10.10.1  
The VSX7000 is a standalone and is not registered to any gatekeeper.  
Dialing plans  
Source  
Destination  
Dial string  
PVX 101  
PVX 102  
(e164)  
102  
epb  
(H323 alias)  
PVX 102  
PVX 101  
PVX 104  
(e164)  
101  
epa  
(H323 alias)  
PVX 101 /  
PVX 102  
(e164)  
104  
(H323 alias)  
epd (string)  
[email protected]  
PVX 101 /  
PVX 102  
PVX 105  
(e164)  
105  
(H323 alias)  
(string)  
epe  
[email protected]  
PVX 104  
PVX 105  
PVX 105  
PVX 104  
PVX 101  
(e164)  
105  
epe  
(H323 alias)  
(e164)  
104  
epd  
(H323 alias)  
PVX 104 /  
PVX 105  
(e164)  
101  
(H323 alias)  
(string)  
epa  
[email protected]  
PVX 104 /  
PVX 105  
PVX 102  
(e164)  
102  
(H323 alias)  
(string)  
epb  
[email protected]  
Viewstation  
(string)  
PVX 101  
PVX 102  
PVX 104  
PVX 105  
[email protected]  
[email protected]  
[email protected]  
[email protected]  
Appendix - 19  
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User Guide V2IU 4300T Converged Network Appliance  
Source  
Destination  
Dial string  
PVX 101 /  
PVX 102 /  
(string)  
Viewstation  
[email protected]  
PVX 103 /  
PVX 105 /  
VSX 7000  
(IP + Ext)  
PVX 101  
PVX 102  
PVX 104  
PVX 105  
Viewstation  
64.10.10.10 , 101  
64.10.10.10, 102  
69.52.177.69 , 104  
69.52.177.69 , 105  
64.186.171.51 , 444  
PVX 101 /  
PVX 102 /  
(string)  
VSX7000  
[email protected]  
PVX 104 /  
PVX 105 /  
Viewstation  
Path Navigator  
Defining a Neighboring Gatekeeper in the Path Navigator.  
Appendix - 20  
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Regulatory Notices  
Important Safeguards  
Read and understand the following instructions before using the system:  
•
Close supervision is necessary when the system is used by or near children. Do not leave  
unattended while in use.  
•
•
•
Only use electrical extension cords with a current rating at least equal to that of the system.  
Always disconnect the system from power before cleaning and servicing and when not in use.  
Do not spray liquids directly onto the system when cleaning. Always apply the liquid first to a  
static free cloth.  
•
•
Do not immerse the system in any liquid or place any liquids on it.  
Do not disassemble this system. To reduce the risk of shock and to maintain the warranty on the  
system, a qualified technician must perform service or repair work.  
•
•
•
Connect this appliance to a grounded outlet.  
Only connect the system to surge protected power outlets.  
Keep ventilation openings free of any obstructions.  
SAVE THESE INSTRUCTIONS.  
END-USER LICENSE AGREEMENT FOR POLYCOM® SOFTWARE  
IMPORTANT-READ CAREFULLY BEFORE USING THE SOFTWARE  
PRODUCT:  
This End-User License Agreement ("Agreement") is a legal agreement between  
you (and/or any company you represent) and either Polycom (Netherlands)  
B.V. (in Europe, Middle East, and Africa), Polycom Hong Kong, Ltd. (in Asia  
Pacific) or Polycom, Inc. (in the rest of the world) (each referred to individually  
and collectively herein as “POLYCOM”), for the SOFTWARE PRODUCT  
licensed by POLYCOM. The SOFTWARE PRODUCT includes computer  
software and may include associated media, printed materials, and "online" or  
electronic documentation ("SOFTWARE PRODUCT"). By clicking "I AGREE"  
or by installing, copying, or otherwise using the SOFTWARE PRODUCT, you  
Regulatory Notices - 1  
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User Guide V2IU 4300T Converged Network Appliance  
agree to be and will be bound by the terms of this Agreement. If you do not  
agree to the terms of this Agreement, your use is prohibited and you may not  
install or use the SOFTWARE PRODUCT.  
The SOFTWARE PRODUCT is protected by copyright laws and international  
copyright treaties, as well as other intellectual property laws and treaties. The  
SOFTWARE PRODUCT is licensed (not sold) to you, and its use is subject to  
the terms of this Agreement. This is NOT a sale contract.  
1.  
GRANT OF LICENSE. Subject to the terms of this Agreement,  
POLYCOM grants to you a non-exclusive, non-transferable, revocable license  
to install and use the SOFTWARE PRODUCT solely on the POLYCOM  
product with which this SOFTWARE PRODUCT is supplied (the  
"PRODUCT"). You may use the SOFTWARE PRODUCT only in connection  
with the use of the PRODUCT subject to the following terms and the  
proprietary notices, labels or marks on the SOFTWARE PRODUCT or media  
upon which the SOFTWARE PRODUCT is provided. You are not permitted  
to lease, rent, distribute or sublicense the SOFTWARE PRODUCT, in whole or  
in part, or to use the SOFTWARE PRODUCT in a time-sharing arrangement or  
in any other unauthorized manner. Further, no license is granted to you in the  
human readable code of the SOFTWARE PRODUCT (source code). Except as  
expressly provided below, this License Agreement does not grant you any  
rights to patents, copyrights, trade secrets, trademarks, or any other rights in  
respect to the SOFTWARE PRODUCT.  
2.  
OTHER RIGHTS AND LIMITATIONS.  
2.1 Limitations on Reverse Engineering, Decompilation, and  
Disassembly. You may not reverse engineer, decompile, modify or  
disassemble the SOFTWARE PRODUCT or otherwise reduce the SOFTWARE  
PRODUCT to human-perceivable form in whole or in part, except and only to  
the extent that such activity is expressly permitted by applicable law  
notwithstanding this limitation. The SOFTWARE PRODUCT is licensed as a  
single product. Its component parts may not be separated for use on more  
than one PRODUCT. You may not use the SOFTWARE PRODUCT for any  
illegal purpose or conduct.  
2.2  
Back-up. Except as expressly provided for under this  
Agreement you may not copy the SOFTWARE PRODUCT; except, however,  
you may keep one copy of the SOFTWARE PRODUCT and, if applicable, one  
copy of any previous version, for back-up purposes, only to be used in the  
event of failure of the original. All copies of the SOFTWARE PRODUCT must  
be marked with the proprietary notices provided on the original SOFTWARE  
PRODUCT. You may not reproduce the supporting documentation  
accompanying the SOFTWARE PRODUCT.  
2.3  
No Modifications. You may not modify, translate or create  
derivative works of the SOFTWARE PRODUCT.  
2.4  
Proprietary Notices. You may not remove or obscure any  
proprietary notices, identification, label or trademarks on or in the  
SOFTWARE PRODUCT or the supporting documentation.  
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Regulatory Notices  
2.5  
Software Transfer. You may permanently transfer all of your  
rights under this Agreement in connection with transfer of the PRODUCT,  
provided you retain no copies, you transfer all of the SOFTWARE PRODUCT  
(including all component parts, the media and printed materials, any  
upgrades, this Agreement, and, if applicable, the Certificate of Authenticity),  
and the recipient agrees to the terms of this Agreement. If the SOFTWARE  
PRODUCT is an upgrade, any transfer must include all prior versions of the  
SOFTWARE PRODUCT. However, if the SOFTWARE PRODUCT is marked  
"Not for Resale" or "NFR", you may not resell it or otherwise transfer it for  
value.  
2.6  
Copyright. All title and copyrights in and to the SOFTWARE  
PRODUCT (including but not limited to any images, photographs,  
animations, video, audio, music, text, and "applets" incorporated into the  
SOFTWARE PRODUCT), the accompanying printed materials, and any copies  
of the SOFTWARE PRODUCT are owned by POLYCOM or its suppliers.  
Title, ownership rights, and intellectual property rights in the SOFTWARE  
PRODUCT shall remain in POLYCOM or its suppliers. Title and related rights  
in the content accessed through the SOFTWARE PRODUCT is the property of  
such content owner and may be protected by applicable law. This Agreement  
gives you no rights in such content.  
2.7  
Confidentiality. The SOFTWARE PRODUCT contains valuable  
proprietary information and trade secrets of POLYCOM and its suppliers that  
remains the property of POLYCOM. You shall protect the confidentiality of,  
and avoid disclosure and unauthorized use of, the SOFTWARE PRODUCT.  
2.8  
Dual-Media Software. You may receive the SOFTWARE  
PRODUCT in more than one medium. Regardless of the type or size of  
medium you receive, you may use only one medium that is appropriate for  
your single PRODUCT. You may not use or install the other medium on  
another PRODUCT.  
2.9  
Reservation of Rights. POLYCOM reserves all rights in the  
SOFTWARE PRODUCT not expressly granted to you in this Agreement.  
2.10 Additional Obligations. You are responsible for all equipment  
and any third party fees (such as carrier charges, internet fees, or provider or  
airtime charges) necessary to access the SOFTWARE PRODUCT.  
3.  
SUPPORT SERVICES. POLYCOM may provide you with support  
services related to the SOFTWARE PRODUCT ("SUPPORT SERVICES "). Use  
of SUPPORT SERVICES is governed by the POLYCOM policies and programs  
described in the POLYCOM-provided materials. Any supplemental software  
code provided to you as part of the SUPPORT SERVICES is considered part of  
the SOFTWARE PRODUCT and is subject to the terms and conditions of this  
Agreement. With respect to technical information you provide to POLYCOM  
as part of the SUPPORT SERVICES, POLYCOM may use such information for  
its business purposes, including for product support and development.  
POLYCOM will not utilize such technical information in a form that  
personally identifies you.  
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4.  
TERMINATION. Without prejudice to any other rights, POLYCOM  
may terminate this Agreement if you fail to comply with any of the terms and  
conditions of this Agreement. In such event, you must destroy all copies of the  
SOFTWARE PRODUCT and all of its component parts. You may terminate  
this Agreement at any time by destroying the SOFTWARE PRODUCT and all  
of its component parts. Termination of this Agreement shall not prevent  
POLYCOM from claiming any further damages. If you do not comply with  
any of the above restrictions, this license will terminate and you will be liable  
to POLYCOM for damages or losses caused by your non-compliance. The  
waiver by POLYCOM of a specific breach or default shall not constitute the  
waiver of any subsequent breach or default.  
5.  
UPGRADES. If the SOFTWARE PRODUCT is labeled as an upgrade,  
you must be properly licensed to use the software identified by POLYCOM as  
being eligible for the upgrade in order to use the SOFTWARE PRODUCT. A  
SOFTWARE PRODUCT labeled as an upgrade replaces and/or supplements  
the software that formed the basis for your eligibility for the upgrade. You  
may use the resulting upgraded SOFTWARE PRODUCT only in accordance  
with the terms of this Agreement. If the SOFTWARE PRODUCT is an upgrade  
of a component of a package of software programs that you licensed as a single  
product, the SOFTWARE PRODUCT may be used and transferred only as part  
of that single SOFTWARE PRODUCT package and may not be separated for  
use on more than one PRODUCT.  
6.  
WARRANTY AND WARRANTY EXCLUSIONS.  
6.1 Limited Warranty. POLYCOM warrants that (a) the  
SOFTWARE PRODUCT will perform substantially in accordance with the  
accompanying documentation for a period of ninety (90) days from the date of  
receipt by you, and (b) any SUPPORT SERVICES provided by POLYCOM  
shall be substantially as described in applicable written materials provided to  
you by POLYCOM. POLYCOM does not warrant that your use of the  
SOFTWARE PRODUCT will be uninterrupted or error free, or that all defects  
in the SOFTWARE PRODUCT will be corrected. You assume full  
responsibility for the selection of the SOFTWARE PRODUCT to achieve your  
intended results and for the installation, use and results obtained from the  
SOFTWARE PRODUCT. POLYCOM's sole obligation under this express  
warranty shall be, at POLYCOM's option and expense, to refund the purchase  
price paid by you for any defective software product which is returned to  
POLYCOM with a copy of your receipt, or to replace any defective media with  
software which substantially conforms to applicable POLYCOM published  
specifications. Any replacement SOFTWARE PRODUCT will be warranted  
for the remainder of the original warranty period or thirty (30) days,  
whichever is longer.  
6.2  
Warranties Exclusive. IF THE SOFTWARE PRODUCT DOES  
NOT OPERATE AS WARRANTED ABOVE, YOUR SOLE REMEDY FOR  
BREACH OF THAT WARRANTY SHALL BE REPAIR, REPLACEMENT, OR  
REFUND OF THE PURCHASE PRICE PAID, AT POLYCOM'S SOLE  
OPTION. TO THE FULL EXTENT ALLOWED BY LAW, THE FOREGOING  
WARRANTIES AND REMEDIES ARE EXCLUSIVE AND ARE IN LIEU OF  
ALL OTHER WARRANTIES, TERMS, OR CONDITIONS, EXPRESS OR  
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IMPLIED, EITHER IN FACT OR BY OPERATION OF LAW, STATUTORY OR  
OTHERWISE, INCLUDING WARRANTIES, TERMS, OR CONDITIONS OF  
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE,  
SATISFACTORY QUALITY, CORRESPONDENCE WITH DESCRIPTION,  
AND NON-INFRINGEMENT, ALL OF WHICH ARE EXPRESSLY  
DISCLAIMED. POLYCOM NEITHER ASSUMES NOR AUTHORIZES ANY  
OTHER PERSON TO ASSUME FOR IT ANY OTHER LIABILITY IN  
CONNECTION WITH THE SALE, INSTALLATION, MAINTENANCE OR  
USE OF THE SOFTWARE PRODUCT. NO ADVICE OR INFORMATION,  
WHETHER ORAL OR WRITTEN, OBTAINED BY YOU FROM POLYCOM  
OR THROUGH OR FROM THE SOFTWARE PRODUCT SHALL CREATE  
ANY WARRANTY NOT EXPRESSLY STATED IN THIS AGREEMENT.  
POLYCOM SHALL NOT BE LIABLE UNDER THIS WARRANTY IF ITS  
TESTING AND EXAMINATION DISCLOSE THAT THE ALLEGED DEFECT  
OR MALFUNCTION IN THE SOFTWARE PRODUCT DOES NOT EXIST OR  
WAS CAUSED BY YOUR OR ANY THIRD PARTY'S MISUSE, NEGLECT,  
IMPROPER INSTALLATION OR TESTING, UNAUTHORIZED ATTEMPTS  
TO MODIFY THE PRODUCT, OR ANY OTHER CAUSE BEYOND THE  
RANGE OF THE INTENDED USE, OR BY ACCIDENT, FIRE, LIGHTNING,  
POWER CUTS OR OUTAGES, OTHER HAZARDS, OR ACTS OF GOD.  
7.  
LIMITATION OF LIABILITY. YOUR USE OF THE SOFTWARE  
PRODUCT IS AT YOUR SOLE RISK. YOU WILL BE SOLELY RESPONSIBLE  
FOR ANY DAMAGE TO YOUR COMPUTER SYSTEM OR LOSS OF DATA  
THAT RESULTS FROM THE DOWNLOAD OR USE OF THE SOFTWARE  
PRODUCT. TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE  
LAW, IN NO EVENT SHALL POLYCOM OR ITS SUPPLIERS BE LIABLE  
FOR ANY SPECIAL, INCIDENTAL, INDIRECT, OR CONSEQUENTIAL  
DAMAGES WHATSOEVER (INCLUDING, WITHOUT LIMITATION,  
DAMAGES FOR LOSS OF BUSINESS PROFITS, BUSINESS INTERRUPTION,  
LOSS OF BUSINESS INFORMATION, OR ANY OTHER PECUNIARY LOSS)  
ARISING OUT OF THE USE OF OR INABILITY TO USE THE SOFTWARE  
PRODUCT OR THE PROVISION OF OR FAILURE TO PROVIDE SUPPORT  
SERVICES, EVEN IF POLYCOM HAS BEEN ADVISED OF THE POSSIBILITY  
OF SUCH DAMAGES. IN ANY CASE, POLYCOM'S ENTIRE LIABILITY  
SHALL BE LIMITED TO THE GREATER OF THE AMOUNT ACTUALLY  
PAID BY YOU FOR THE SOFTWARE PRODUCT OR U.S. $5.00. PROVIDED,  
HOWEVER, IF YOU HAVE ENTERED INTO A POLYCOM SUPPORT  
SERVICES AGREEMENT, POLYCOM'S ENTIRE LIABILITY REGARDING  
SUPPORT SERVICES SHALL BE GOVERNED BY THE TERMS OF THAT  
AGREEMENT.  
8.  
INDEMNITY. You agree to indemnify and hold harmless POLYCOM  
and its subsidiaries, affiliates, officers, agents, co-branders, customers or other  
partners, and employees, from any loss, claim or demand, including  
reasonable attorneys' fees, made by any third party due to or arising out of  
your use of the SOFTWARE PRODUCT, your connection to the SOFTWARE  
PRODUCT, or your violation of the Terms.  
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9.  
DISCLAIMER. Some countries, states, or provinces do not allow the  
exclusion or limitation of implied warranties or the limitation of incidental or  
consequential damages for certain products supplied to consumers, or the  
limitation of liability for personal injury, so the above limitations and  
exclusions may be limited in their application to you. When the implied  
warranties are not allowed to be excluded in their entirety due to local law,  
they will be limited to the duration of the applicable warranty.  
10. EXPORT CONTROLS. The SOFTWARE PRODUCT may not be  
downloaded or otherwise exported or re-exported (i) into (or to a national or  
resident of) Cuba, Iraq, Libya, North Korea, Yugoslavia, Iran, Syria, Republic  
of Serbia, or any other country to which the U.S. has embargoed goods; or (ii)  
to anyone on the U.S. Treasury Department's list of Specially Designated  
Nationals or the U.S. Commerce Department's Table of Denial Orders. By  
downloading or using the SOFTWARE PRODUCT, you are agreeing to the  
foregoing and you are representing and warranting that you are not located in,  
under the control of, or a national or resident of any such country or on any  
such list. If you obtained this SOFTWARE PRODUCT outside of the United  
States, you are also agreeing that you will not export or re-export it in violation  
of the laws of the country in which it was obtained.  
11. MISCELLANEOUS.  
11.1  
Governing Law. THIS AGREEMENT SHALL BE GOVERNED  
BY THE LAWS OF THE STATE OF CALIFORNIA AS SUCH LAWS ARE  
APPLIED TO AGREEMENTS ENTERED INTO AND TO BE PERFORMED  
ENTIRELY WITHIN CALIFORNIA BETWEEN CALIFORNIA RESIDENTS,  
AND BY THE LAWS OF THE UNITED STATES. The United Nations  
Convention on Contracts for the International Sale of Goods (1980) is hereby  
excluded in its entirety from application to this Agreement.  
11.2  
Entire Agreement. This Agreement represents the complete  
agreement concerning the SOFTWARE PRODUCT and may be amended only  
by a writing executed by both parties. If any provision of this Agreement is  
held to be unenforceable, such provision shall be reformed only to the extent  
necessary to make it enforceable.  
11.3  
Contact. If you have any questions concerning this Agreement,  
or if you desire to contact POLYCOM for any reason, please contact the  
POLYCOM office serving your country.  
11.4  
U.S. Government Restricted Rights. The SOFTWARE  
PRODUCT and documentation are provided with RESTRICTED RIGHTS.  
The SOFTWARE PRODUCT programs and documentation are deemed to be  
"commercial computer software" and "commercial computer software  
documentation", respectively, pursuant to DFAR Section 227.7202 and FAR  
12.212(b), as applicable. Any use, modification, reproduction, release,  
performance, display or disclosure of the SOFTWARE PRODUCT programs  
and/or documentation by the U.S. Government or any of its agencies shall be  
governed solely by the terms of this Agreement and shall be prohibited except  
to the extent expressly permitted by the terms of this Agreement. Any  
technical data provided that is not covered by the above provisions is deemed  
to be "technical data-commercial items" pursuant to DFAR Section 227.7015(a).  
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Any use, modification, reproduction, release, performance, display or  
disclosure of such technical data shall be governed by the terms of DFAR  
Section 227.7015(b).  
BY INSTALLING, COPYING, OR OTHERWISE USING THIS SOFTWARE  
PRODUCT YOU ACKNOWLEDGE THAT YOU HAVE READ,  
UNDERSTAND AND AGREE TO BE BOUND BY THE TERMS AND  
CONDITIONS INDICATED ABOVE.  
Polycom, Inc. © 2005. ALL RIGHTS RESERVED.  
4750 Willow Road  
Pleasanton, CA 94588  
U.S.A.  
Software included in this product contains a module called PsyVoIP which is  
protected by copyright and by European, US and other patents and is  
provided under licence from Psytechnics Limited.  
Portions of this product also include software sponsored by the Free Software  
Foundation and are covered by the GNU GENERAL PUBLIC LICENSE:  
GNU GENERAL PUBLIC LICENSE  
TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND  
MODIFICATION  
This License applies to any program or other work which contains a notice  
placed by the copyright holder saying it may be distributed under the terms of  
this General Public License. The "Program", below, refers to any such program  
or work, and a "work based on the Program" means either the Program or any  
derivative work under copyright law: that is to say, a work containing the  
Program or a portion of it, either verbatim or with modifications and/or  
translated into another language. (Hereinafter, translation is included without  
limitation in the term "modification".) Each licensee is addressed as "you".  
Activities other than copying, distribution and modification are not covered  
by this License; they are outside its scope. The act of running the Program is  
not restricted, and the output from the Program is covered only if its contents  
constitute a work based on the Program (independent of having been made by  
running the Program).  
Whether that is true depends on what the Program does.  
1.  
You may copy and distribute verbatim copies of the Program's source  
code as you receive it, in any medium, provided that you conspicuously and  
appropriately publish on each copy an appropriate copyright notice and  
disclaimer of warranty; keep intact all the notices that refer to this License and  
to the absence of any warranty; and give any other recipients of the Program a  
copy of this License along with the Program.  
You may charge a fee for the physical act of transferring a copy, and you may  
at your option offer warranty protection in exchange for a fee.  
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2.  
You may modify your copy or copies of the Program or any portion of it,  
thus forming a work based on the Program, and copy and distribute such  
modifications or work under the terms of Section 1 above, provided that you  
also meet all of these conditions:  
a) You must cause the modified files to carry prominent notices stating that  
you changed the files and the date of any change.  
b) You must cause any work that you distribute or publish, that in whole  
or in part contains or is derived from the Program or any part thereof, to  
be licensed as a whole at no charge to all third parties under the terms of  
this License.  
c) If the modified program normally reads commands interactively when  
run, you must cause it, when started running for such interactive use in  
the most ordinary way, to print or display an announcement including  
an appropriate copyright notice and a notice that there is no warranty  
(or else, saying that you provide a warranty) and that users may  
redistribute the program under these conditions, and telling the user  
how to view a copy of this License. (Exception: if the Program itself is  
interactive but does not normally print such an announcement, your  
work based on the Program is not required to print an announcement.)  
These requirements apply to the modified work as a whole. If identifiable  
sections of that work are not derived from the Program, and can be reasonably  
considered independent and separate works in themselves, then this License,  
and its terms, do not apply to those sections when you distribute them as  
separate works. But when you distribute the same sections as part of a whole  
which is a work based on the Program, the distribution of the whole must be  
on the terms of this License, whose permissions for other licensees extend to  
the entire whole, and thus to each and every part regardless of who wrote it.  
Thus, it is not the intent of this section to claim rights or contest your rights to  
work written entirely by you; rather, the intent is to exercise the right to control  
the distribution of derivative or collective works based on the Program.  
In addition, mere aggregation of another work not based on the Program with  
the Program (or with a work based on the Program) on a volume of a storage  
or distribution medium does not bring the other work under the scope of this  
License.  
3. You may copy and distribute the Program (or a work based on it, under  
Section 2) in object code or executable form under the terms of Sections 1 and  
2 above provided that you also do one of the following:  
a) Accompany it with the complete corresponding machine-readable  
source code, which must be distributed under the terms of Sections 1  
and 2 above on a medium customarily used for software interchange; or,  
b) Accompany it with a written offer, valid for at least three years, to give  
any third party, for a charge no more than your cost of physically  
performing source distribution, a complete machine-readable copy of  
Regulatory Notices - 8  
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Regulatory Notices  
the corresponding source code, to be distributed under the terms of  
Sections 1 and 2 above on a medium customarily used for software  
interchange; or,  
c) Accompany it with the information you received as to the offer to  
distribute corresponding source code. (This alternative is allowed only  
for noncommercial distribution and only if you received the program in  
object code or executable form with such an offer, in accord with  
Subsection b above.)  
The source code for a work means the preferred form of the work for making  
modifications to it. For an executable work, complete source code means all  
the source code for all modules it contains, plus any associated interface  
definition files, plus the scripts used to control compilation and installation of  
the executable. However, as a special exception, the source code distributed  
need not include anything that is normally distributed (in either source or  
binary form) with the major components (compiler, kernel, and so on) of the  
operating system on which the executable runs, unless that component itself  
accompanies the executable.  
If distribution of executable or object code is made by offering access to copy  
from a designated place, then offering equivalent access to copy the source  
code from the same place counts as distribution of the source code, even  
though third parties are not compelled to copy the source along with the object  
code.  
4. You may not copy, modify, sublicense, or distribute the Program except as  
expressly provided under this License. Any attempt otherwise to copy,  
modify, sublicense or distribute the Program is void, and will automatically  
terminate your rights under this License. However, parties who have received  
copies, or rights, from you under this License will not have their licenses  
terminated so long as such parties remain in full compliance.  
5. You are not required to accept this License, since you have not signed it.  
However, nothing else grants you permission to modify or distribute the  
Program or its derivative works. These actions are prohibited by law if you do  
not accept this License. Therefore, by modifying or distributing the Program  
(or any work based on the Program), you indicate your acceptance of this  
License to do so, and all its terms and conditions for copying, distributing or  
modifying the Program or works based on it.  
6. Each time you redistribute the Program (or any work based on the  
Program), the recipient automatically receives a license from the original  
licensor to copy, distribute or modify the Program subject to these terms and  
conditions. You may not impose any further restrictions on the recipients'  
exercise of the rights granted herein.  
You are not responsible for enforcing compliance by third parties to this  
License.  
7. If, as a consequence of a court judgment or allegation of patent infringement  
or for any other reason (not limited to patent issues), conditions are imposed  
on you (whether by court order, agreement or otherwise) that contradict the  
Regulatory Notices - 9  
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User Guide V2IU 4300T Converged Network Appliance  
conditions of this License, they do not excuse you from the conditions of this  
License. If you cannot distribute so as to satisfy simultaneously your  
obligations under this  
License and any other pertinent obligations, then as a consequence you may  
not distribute the Program at all. For example, if a patent license would not  
permit royalty-free redistribution of the Program by all those who receive  
copies directly or indirectly through you, then the only way you could satisfy  
both it and this License would be to refrain entirely from distribution of the  
Program.  
If any portion of this section is held invalid or unenforceable under any  
particular circumstance, the balance of the section is intended to apply and the  
section as a whole is intended to apply in other circumstances.  
It is not the purpose of this section to induce you to infringe any patents or  
other property right claims or to contest validity of any such claims; this  
section has the sole purpose of protecting the integrity of the free software  
distribution system, which is implemented by public license practices. Many  
people have made generous contributions to the wide range of software  
distributed through that system in reliance on consistent application of that  
system; it is up to the author/donor to decide if he or she is willing to  
distribute software through any other system and a licensee cannot impose  
that choice.  
This section is intended to make thoroughly clear what is believed to be a  
consequence of the rest of this License.  
8. If the distribution and/or use of the Program is restricted in certain  
countries either by patents or by copyrighted interfaces, the original copyright  
holder who places the Program under this License may add an explicit  
geographical distribution limitation excluding those countries, so that  
distribution is permitted only in or among countries not thus excluded. In  
such case, this License incorporates the limitation as if written in the body of  
this License.  
9. The Free Software Foundation may publish revised and/or new versions of  
the General Public License from time to time. Such new versions will be  
similar in spirit to the present version, but may differ in detail to address new  
problems or concerns.  
Each version is given a distinguishing version number. If the Program  
specifies a version number of this License which applies to it and "any later  
version", you have the option of following the terms and conditions either of  
that version or of any later version published by the Free Software Foundation.  
If the Program does not specify a version number of this License, you may  
choose any version ever published by the Free Software Foundation.  
10. If you wish to incorporate parts of the Program into other free programs  
whose distribution conditions are different, write to the author to ask for  
permission. For software which is copyrighted by the Free Software  
Foundation, write to the Free Software Foundation; we sometimes make  
Regulatory Notices - 10  
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Regulatory Notices  
exceptions for this. Our decision will be guided by the two goals of preserving  
the free status of all derivatives of our free software and of promoting the  
sharing and reuse of software generally.  
NO WARRANTY  
11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS  
NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY  
APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING  
THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES PROVIDE THE  
PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER  
EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE  
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A  
PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND  
PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE  
PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL  
NECESSARY SERVICING, REPAIR OR CORRECTION.  
12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED  
TO IN WRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER  
PARTY WHO MAY MODIFY AND/OR REDISTRIBUTE THE PROGRAM AS  
PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING  
ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL  
DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE  
PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR  
DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY  
YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO  
OPERATE WITH ANY OTHER PROGRAMS), EVEN IF SUCH HOLDER OR  
OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH  
DAMAGES.  
END OF TERMS AND CONDITIONS  
FCC PART 15 NOTICE  
This device complies with Part 15 Subpart B Class B of the FCC Rules.  
Operation is subject to the following two conditions: (1) This device may not  
cause harmful interference, and (2) This device must accept any interference  
received, including interference that may cause undesired operation.  
FCC PART 68 NOTICE TO USERS OF DIGITAL SERVICE  
This equipment complies with Part 68 of the FCC Rules and the requirements  
adopted by ACTA. On the bottom surface of this equipment is a label that  
contains, among other information, a product identifier in the format US:  
EWRDENAN4300T. If requested, this number must be provided to the  
telephone company.  
The following instructions are provided to ensure compliance with the Federal  
Communications Commission (FCC) Rules, Part 68.  
Regulatory Notices - 11  
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User Guide V2IU 4300T Converged Network Appliance  
(1)  
This device must only be connected to the T1 WAN network.  
(2) Before connecting your unit, you must inform the telephone company of  
the following information:  
Port ID REN/SOC FIC USOC  
T1 WAN 04DU9-DN, 04DU9-BN 6.0N RJ48C  
(3) If the unit appears to be malfunctioning, it should be disconnected from  
the telephone lines until you learn if your equipment or the telephone line is  
the source of the trouble. If your equipment needs repair, it should not be  
reconnected until it is repaired.  
(4) If the telephone company finds that this equipment is exceeding tolerable  
parameters, the telephone company can temporarily disconnect service,  
although they will attempt to give you advance notice if possible.  
(5)  
Under the FCC Rules, no customer is authorized to repair this  
equipment. This restriction applies regardless of whether the equipment is in  
or out of warranty.  
(6)  
If the telephone company alters their equipment in a manner that will  
affect use of this device, they must give you advance warning so as to give you  
the opportunity for uninterrupted service. You will be advised of your right to  
file a complaint with the FCC.  
(7)  
In the event of equipment malfunction, all repairs should be  
performed by our Company or an authorized agent. It is the responsibility of  
users requiring service to report the need for service to our Company or to one  
of our authorized agents.  
INDUSTRY CANADA (IC) NOTICE  
NOTICE: This equipment meets the applicable Industry Canada Terminal  
Equipment Technical Specifications. This is confirmed by the registration  
number. The abbreviation, IC, before the registration number signifies that  
registration was performed based on a Declaration of Conformity indicating  
that Industry Canada technical specifications were met. It does not imply that  
Industry Canada approved the equipment.”  
Before installing this equipment, users should ensure that it is permissible to  
be connected to the facilities of the local telecommunications company. The  
equipment must also be installed using an acceptable method of connection.  
The customer should be aware that compliance with the above conditions may  
not prevent degradation of service in some situations.  
Repairs to certified equipment should be coordinated by a representative  
designated by the supplier. Any repairs or alterations made by a user to this  
equipment, or equipment malfunctions, may give the telephone  
communications company cause to request the user to disconnect the  
equipment.  
Regulatory Notices - 12  
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Regulatory Notices  
Users should ensure for their own protection, that the electrical ground  
connections of the power utility, telephone lines and internal metallic water  
pipe system, if present, are connected together. This precaution may be  
particularly important in rural areas”.  
Caution: Users should not attempt to make such connections themselves, but  
should contact the appropriate electric inspection authority, or electrician, as  
appropriate.  
WARRANTY AND REPAIR SERVICE CENTER:  
The RAM Group  
Kent McDonald  
[email protected]  
(403) 266-5840 x 100  
This Class (B) digital apparatus complies with Canadian ICES-003.  
Regulatory Notices - 13  
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Regulatory Notices - 14  
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