Cisco Systems IP Phone OL 8555 02 User Manual

C H A P T E R  
6
Viewing Model Information, Status,  
Statistics, and Security Information on  
the Cisco Unified IP Phone  
This chapter describes how to use the following menus and screens on the Cisco  
Unified IP Phone to view security information, model information, status  
messages, network statistics, firmware information, and call statistics for the  
phone:  
Model Information screen—Displays hardware and software information  
about the phone.  
Status menu—Provides access to screens that display the status messages,  
network statistics, and firmware versions.  
Call Statistics screen—Displays counters, packet statistics, and voice quality  
metrics for the current call.  
Security Configuration screen—Displays information about security on the  
phone.  
You can use the information on these screens to monitor the operation of a phone  
and to assist with troubleshooting.  
You can also obtain much of this information, and obtain other related  
information, remotely through the phone’s web page. For more information, see  
For more information about troubleshooting the Cisco Unified IP Phone, see  
Chapter 8, “Troubleshooting the Cisco Unified IP Phone.”  
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Chapter 6 Viewing Model Information, Status, Statistics, and Security Information on the Cisco Unified IP Phone  
Status Menu  
Table 6-1 Model Information (continued)  
Item  
Description  
CTL  
Displays the MD5 hash of the certificate trust list  
(CTL) file that is installed in the phone. If no CTL  
file is installed on the phone, this field displays No.  
(If security is configured for the phone, the CTL file  
installs automatically when the phone reboots or  
resets. For more information about this file, refer to  
Cisco Unified CallManager Security Guide.)  
MIC  
LSC  
Indicates whether a manufacturing installed  
certificate (used for the security features) is installed  
on the phone or is not installed on the phone.  
Indicates whether a locally significant certificate  
(used for the security features) is installed on the  
phone or is not installed on the phone.  
Status Menu  
The Status menu provides information about the phone and its operation that  
includes messages, statistics, and information about firmware versions on the  
phone and any expansion modules.  
To access the Status menu, follow these steps:  
Procedure  
Step 1  
Step 2  
Press the Settings button.  
Select Status Menu.  
The Status menu contains these options, which provide information about the  
phone and its operation:  
Status Messages—Displays the Status Messages screen, which shows a log  
of important system messages. For more information, see the “Status  
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Chapter 6 Viewing Model Information, Status, Statistics, and Security Information on the Cisco Unified IP Phone  
Status Menu  
Network Statistics—Displays the Network Statistics screen, which shows  
Ethernet traffic statistics. For more information, see the “Network Statistics  
Firmware Versions—Displays the Firmware Versions screen, which shows  
information about the firmware running on the phone. For more information,  
Expansion Module Stats—Displays the Expansion Module Stats screen,  
which shows information about the Cisco Unified IP Phone 7914 Expansion  
Module or modules, if connected to the phone. For more information, see the  
Call Statistics—Displays the Call Statistics screen, which shows information  
about the phone call on the phone. For more information, see the “Call  
Status Messages Screen  
The Status Messages screen displays up to the 10 most recent status messages that  
the phone has generated. You can access this screen at any time, even if the phone  
has not finished starting up. Table 6-2 describes the status messages that might  
appear. This table also includes actions you can take to address errors that are  
indicated.  
To display the Status Messages screen, follow these steps:  
Procedure  
Step 1  
Step 2  
Step 3  
Press the Settings button.  
Select Status.  
Select Status Messages.  
Note  
To remove current status messages, press the Clear softkey.  
Table 6-2 provides a list of the Status Messages with their description and  
explanation.  
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Chapter 6 Viewing Model Information, Status, Statistics, and Security Information on the Cisco Unified IP Phone  
Status Menu  
Table 6-2 Status Messages on the Cisco Unified IP Phone 7940G/7960G  
Message  
Description  
Possible Explanation and Action  
BootP server used  
The phone obtained its IP  
address from a BootP server  
rather than a DHCP server.  
None. This message is informational only.  
CFG file not found  
The name-based and default  
configuration file was not  
found on the TFTP Server.  
The configuration file for a phone is created  
when the phone is added to the  
Cisco Unified CallManager database. If the  
phone has not been added to the  
Cisco Unified CallManager database, the  
TFTP server generates a CFG File Not Found  
response.  
Phone is not registered with  
Cisco Unified CallManager.  
You must manually add the phone to  
Cisco Unified CallManager if you are not  
allowing phones to auto-register. See the  
“Methods for Adding Phones to the  
Cisco Unified CallManager Database”  
section on page 2-11 for details.  
If you are using DHCP, verify that the  
DHCP server is pointing to the correct  
TFTP server.  
If you are using static IP addresses, check  
configuration of the TFTP server. See the  
“Network Configuration Menu Options”  
section on page 4-3 for details on  
assigning a TFTP server.  
CFG TFTP Size Error The configuration file is too  
large for file system on the  
phone.  
Power cycle the phone.  
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Chapter 6 Viewing Model Information, Status, Statistics, and Security Information on the Cisco Unified IP Phone  
Status Menu  
Table 6-2 Status Messages on the Cisco Unified IP Phone 7940G/7960G (continued)  
Message  
Description  
Possible Explanation and Action  
Checksum Error  
Downloaded software file is  
corrupted.  
Obtain a new copy of the phone firmware and  
place it in the TFTPPath directory. You should  
only copy files into this directory when the  
TFTP server software is shut down, otherwise  
the files may be corrupted.  
CTL Installed  
A certificate trust list (CTL)  
file is installed in the phone.  
None. This message is informational only.  
For more information about the CTL file,  
refer to Cisco Unified CallManager Security  
Guide.  
CTL update failed  
DHCP timeout  
The phone could not update its Problem with the CTL file on the TFTP  
certificate trust list (CTL) file. server.  
For more information, refer to  
Cisco Unified CallManager Security Guide.  
DHCP server did not respond.  
Network is busy—The errors should  
resolve themselves when the network  
load reduces.  
No network connectivity between the  
DHCP server and the phone—Verify the  
network connections.  
DHCP server is down—Check  
configuration of DHCP server.  
Errors persist—Consider assigning a  
static IP address. See the “Network  
Configuration Menu Options” section on  
page 4-3 for details on assigning a static  
IP address.  
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Status Menu  
Table 6-2 Status Messages on the Cisco Unified IP Phone 7940G/7960G (continued)  
Message  
Description  
Possible Explanation and Action  
DNS timeout  
DNS server did not respond.  
Network is busy—The errors should  
resolve themselves when the network  
load reduces.  
No network connectivity between the  
DNS server and the phone—Verify the  
network connections.  
DNS server is down—Check  
configuration of DNS server.  
DNS unknown host  
Duplicate IP  
DNS could not resolve the  
name of the TFTP server or  
Cisco Unified CallManager.  
Verify that the host names of the TFTP  
server or Cisco Unified CallManager are  
configured properly in DNS.  
Consider using IP addresses rather than  
host names.  
Another device is using the IP  
address assigned to the phone.  
If the phone has a static IP address, verify  
that you have not assigned a duplicate IP  
address. See the “Network Configuration  
Menu Options” section on page 4-3  
section for details.  
If you are using DHCP, check the DHCP  
server configuration.  
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Status Menu  
Table 6-2 Status Messages on the Cisco Unified IP Phone 7940G/7960G (continued)  
Message  
Description  
Possible Explanation and Action  
Error update locale  
One or more localization files Check that the following files are located  
could not be found in the  
TFTPPath directory or were  
not valid. The locale was not  
changed.  
within subdirectories in the TFTPPath  
directory:  
Located in subdirectory with same name  
as network locale:  
tones.xml  
Located in subdirectory with same name  
as user locale:  
glyphs.xml  
dictionary.xml  
kate.xml  
dictionary.xml  
File auth error  
An error occurred when the  
phone tried to validate the  
signature of a signed file. This  
message includes the name of  
the file that failed.  
The file is corrupted. If the file is a phone  
configuration file, delete the phone from  
the Cisco Unified CallManager database  
using Cisco Unified CallManager  
Administration. Then add the phone back  
to the Cisco Unified CallManager  
database using Cisco Unified  
CallManager Administration.  
There is a problem with the CTL file and  
the key for the server from which files are  
obtained is bad. In this case, run the CTL  
client and update the CTL file, making  
sure that the proper TFTP servers are  
included in this file.  
File not found  
The phone cannot locate on the Make sure that the phone load file is on the  
TFTP server the phone load  
file that is specified in the  
phone configuration file.  
TFTP server and that the entry in the  
configuration file is correct.  
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Status Menu  
Table 6-2 Status Messages on the Cisco Unified IP Phone 7940G/7960G (continued)  
Message  
Description  
Possible Explanation and Action  
IP address released  
The phone has been  
configured to release its IP  
address.  
The phone remains idle until it is power  
cycled or you reset the DHCP address. See the  
“Network Configuration Menu Options”  
section on page 4-3 section for details.  
Load Auth Failed  
The phone could not load a  
configuration file.  
The configuration file that the phone received  
from the server identified in this message is  
corrupt. Make sure that a good version of the  
configuration file exists on that server.  
Load Auth Failed  
Load ID incorrect  
A signed phone load file has  
been modified or renamed.  
Make sure that the phone load file that the  
phone is downloading has not been altered or  
renamed.  
Load ID of the software file is Check the load ID assigned to the phone (from  
of the wrong type.  
Cisco Unified CallManager, choose Device >  
Phone). Verify that the load ID is entered  
correctly.  
Load rejected HC  
The application that was  
Occurs if you were attempting to install a  
downloaded is not compatible version of software on this phone that did not  
with the phone’s hardware.  
support hardware changes on this newer  
phone.  
Check the load ID assigned to the phone (from  
Cisco Unified CallManager, choose Device >  
Phone). Re-enter the load displayed on the  
section on page 6-14 to verify the phone  
setting.  
No CTL installed  
A certificate trust list (CTL)  
file is not installed in the  
phone.  
Occurs if security is not configured or, if  
security is configured, because the CTL file  
does not exist on the TFTP server.  
For more information, refer to  
Cisco Unified CallManager Security Guide.  
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Status Menu  
Table 6-2 Status Messages on the Cisco Unified IP Phone 7940G/7960G (continued)  
Message  
Description  
Possible Explanation and Action  
No default router  
DHCP or static configuration  
did not specify a default  
router.  
If the phone has a static IP address, verify  
that the default router has been  
configured. See the “Network  
Configuration Menu Options” section on  
page 4-3 section for details.  
If you are using DHCP, the DHCP server  
has not provided a default router. Check  
the DHCP server configuration.  
No DNS server IP  
A name was specified but  
DHCP or static IP  
configuration did not specify a  
DNS server address.  
If the phone has a static IP address, verify  
that the DNS server has been configured.  
See the “Network Configuration Menu  
Options” section on page 4-3 section for  
details.  
If you are using DHCP, the DHCP server  
has not provided a DNS server. Check the  
DHCP server configuration.  
Programming Error  
TFTP access error  
The phone failed during  
programming.  
Attempt to resolve this error by power cycling  
the phone. If the problem persists, contact  
Cisco technical support for additional  
assistance.  
TFTP server is pointing to a  
directory that does not exist.  
If you are using DHCP, verify that the  
DHCP server is pointing to the correct  
TFTP server.  
If you are using static IP addresses, check  
configuration of TFTP server. See the  
“Network Configuration Menu Options”  
section on page 4-3 for details on  
assigning a TFTP server.  
TFTP Error  
The phone does not recognize Contact the Cisco TAC.  
an error code provided by the  
TFTP server.  
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Status Menu  
Table 6-2 Status Messages on the Cisco Unified IP Phone 7940G/7960G (continued)  
Message  
Description  
Possible Explanation and Action  
TFTP file not found  
The requested load file (.bin) Check the load ID assigned to the phone (from  
was not found in the TFTPPath Cisco Unified CallManager, choose Device >  
directory.  
Phone). Verify that the TFTPPath directory  
contains a.bin file with this load ID as the name.  
TFTP server not  
authorized  
The specified TFTP server  
could not be found in the  
phone’s CTL.  
The DHCP server is not configured  
properly and is not server the correct  
TFTP server address. In this case, update  
the TFTP server configuration to specify  
the correct TFTP server.  
If the phone is using a static IP address,  
the phone may be configured with the  
wrong TFTP server address. In this case,  
enter the correct TFTP server address in  
the Network Configuration menu on the  
phone.  
If the TFTP server address is correct,  
there may be a problem with the CTL file.  
In this case, run the CTL client and  
update the CTL file, making sure that the  
proper TFTP servers are included in this  
file.  
TFTP timeout  
TFTP server did not respond.  
Network is busy—The errors should  
resolve themselves when the network  
load reduces.  
No network connectivity between the  
TFTP server and the phone—Verify the  
network connections.  
TFTP server is down—Check  
configuration of TFTP server.  
Version error  
The name of the phone load  
file is incorrect.  
Make sure that the phone load file has the  
correct name.  
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Status Menu  
Table 6-2 Status Messages on the Cisco Unified IP Phone 7940G/7960G (continued)  
Message  
Description  
Possible Explanation and Action  
XmlDefault.cnf.xml, Name of the configuration file. None. This is an informational message  
or .cnf.xml  
corresponding to the  
phone device name  
indicating the name of the configuration file  
for the phone.  
Network Statistics Screen  
The Network Statistics screen provides information about the phone and network  
performance. Table 6-3 explains components of text messages that might appear  
in this screen.  
To display the Network Statistics screen, follow these steps:  
Procedure  
Step 1  
Step 2  
Step 3  
Press the Settings button.  
Select Status.  
Select Network Statistics.  
To reset the Rx Frames, Tx Frames, and Rx Broadcasts statistics to 0, press the  
Clear softkey.  
The Network Statistics screen displays these items:  
Table 6-3 Network Statistics Message Components  
Item  
Description  
Rx Frames  
Tx Frames  
Rx Broadcasts  
Number of packets received by the phone  
Number of packets sent by the phone  
Number of broadcast packets received by the phone  
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Chapter 6 Viewing Model Information, Status, Statistics, and Security Information on the Cisco Unified IP Phone  
Status Menu  
Table 6-3 Network Statistics Message Components (continued)  
Item  
Description  
One of the following  
values:  
Cause of the last reset of the phone  
Initialized  
TCP-timeout  
CM-closed-TCP  
TCP-Bad-ACK  
CM-reset-TCP  
CM-aborted-TCP  
CM-NAKed  
KeepaliveTO  
Failback  
Phone-Keypad  
Phone-Re-IP  
Reset-Reset  
Reset-Restart  
Phone-Reg-Rej  
Load Rejected HC  
CM-ICMP-Unreach  
Phone-Abort  
Elapsed Time  
Amount of time that has elapsed since the phone  
connected to Cisco Unified CallManager  
Port 1  
Link state and connection of the PC port (for  
example, Auto 100 Mb Full-Duplexmeans that the  
PC port is in a link up state and has auto-negotiated  
a full-duplex, 100-Mbps connection)  
Port 2  
Link state and connection of the Network port  
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Status Menu  
Firmware Versions Screen  
The Firmware Versions screen displays information about the firmware running  
on the phone. Table 6-4 explains the information that appears in this screen.  
To display the Firmware Version screen, follow these steps:  
Procedure  
Step 1  
Step 2  
Step 3  
Press the Settings button.  
Select Status.  
Select Firmware Versions.  
The Firmware Version screen displays these items:  
Table 6-4 Firmware Version Information  
Item  
Description  
App Load ID  
Boot Load ID  
Identifies the JAR file running on the phone  
Identifies the factory-installed load running on the  
phone  
Version  
Identifies the firmware version running on the  
phone.  
DSP  
Identifies the digital signal processor (DSP) software  
version.  
Expansion Module 1  
Expansion Module 2  
Identifies the firmware version running on the  
expansion module  
Identifies the firmware version running on the  
expansion module  
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Status Menu  
Expansion Module Stats Screen  
When the Cisco Unified IP Phone Expansion Module 7914 or modules are  
connected to the IP phone, the Expansion Module Stats screen displays  
information about the expansions modules.  
Table 6-5 explains the information that appears in this screen for each connected  
expansion module. You can use this information to troubleshoot the expansion  
module, if necessary. In the Expansion Module Stats screen, a statistic preceded  
by “A” is for the first expansion module. A statistic preceded by “B” is for the  
second expansion module.  
To display the Expansion Module Stats screen, follow these steps:  
Procedure  
Step 1  
Step 2  
Step 3  
Press the Settings button.  
Select Status.  
Select Expansion Module Stats.  
Table 6-5 describes the information that displays for each connected expansion  
module.  
Table 6-5 Expansion Module Statistics  
Item  
Description  
Link State  
Overall expansion module status  
Number of bytes discarded due to errors  
Number of packets discarded due to improper length  
RX Discarded Bytes  
RX Length Err  
RX Checksum Err  
Number of packets discarded due to invalid  
checksum information  
RX Invalid Message  
Number of packets that have been discarded because  
a message was invalid or unsupported  
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Call Statistics Screen  
Table 6-5 Expansion Module Statistics (continued)  
Item  
Description  
TX Retransmit  
Number of packets that have been retransmitted to  
the expansion module  
TX Buffer Full  
Number of packets discarded because the expansion  
module was not able to accept new messages  
Call Statistics Screen  
You can access the Call Statistics screen on the phone to display counters,  
statistics, and voice quality metrics as shown in Table 6-6 in the following ways:  
During call, you can display the call information on the phone screen by  
pressing the i or ? button twice rapidly.  
After the call, you can view the call information captured during the last call  
by displaying the Call Statistics screen.  
Note  
You can remotely view the call statistics information by using a web  
browser to access the Streaming Statistics web page. For more  
information about remote monitoring, see the “Streaming Statistics”  
section on page 7-18.  
A single call can have multiple voice streams, but data is captured for only the last  
voice stream. A voice stream is a packet stream between two endpoints. If one  
endpoint is put on hold, the voice stream stops even though the call is still  
connected. When the call resumes, a new voice packet stream begins, and the new  
call data overwrites the former call data.  
For information about using the voice quality metrics, see the “Monitoring the  
Voice Quality of Calls” section on page 8-23.  
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Call Statistics Screen  
To display the Call Statistics screen for information about the last voice stream,  
follow these steps:  
Procedure  
Step 1  
Step 2  
Step 3  
Press the Settings button.  
Select Status.  
Select Call Statistics.  
Table 6-6 describes the information that displays on the Call Statistics screen:  
Table 6-6 Call Statistics  
Item  
Description  
RxType  
Type of voice stream received (RTP streaming  
audio): G.729, G.711 u-law, G.711 A-law, or  
Lin16k.  
TxType  
Type of voice stream transmitted (RTP streaming  
audio): G.729, G.711 u-law, G.711 A-law, or  
Lin16k.  
RxSize  
TxSize  
RxCnt  
Size of voice packets, in milliseconds, in the  
receiving voice stream (RTP streaming audio).  
Size of voice packets, in milliseconds, in the  
transmitting voice stream.  
Number of RTP voice packets received since voice  
stream was opened.  
Note  
This number is not necessarily identical to  
the number of RTP voice packets received  
since the call began because the call might  
have been placed on hold.  
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Chapter 6 Viewing Model Information, Status, Statistics, and Security Information on the Cisco Unified IP Phone  
Call Statistics Screen  
Table 6-6 Call Statistics (continued)  
Item  
Description  
TxCnt  
Number of RTP voice packets transmitted since  
voice stream was opened.  
Note  
This number is not necessarily identical to  
the number of RTP voice packets transmitted  
since the call began because the call might  
have been placed on hold.  
Avg Jtr  
Estimated average RTP packet jitter (dynamic delay  
that a packet encounters when going through the  
network) observed since the receiving voice stream  
was opened.  
Max Jtr  
RxDisc  
Maximum jitter observed since the receiving voice  
stream was opened.  
Number of RTP packets in the receiving voice stream  
that have been discarded (bad packets, too late, and  
so on).  
Note  
The phone will discard payload type 19  
comfort noise packets that are generated by  
Cisco Gateways, which will increment this  
counter.  
RxLost  
Missing RTP packets (lost in transit).  
Voice Quality Metrics  
MOS LQK  
Score that is an objective estimate of the mean  
opinion score (MOS) for listening quality (LQK)  
that rates from 5 (excellent) to 1 (bad). This score is  
based on audible concealment events due to frame  
loss in the preceding 8-second interval of the voice  
stream. For more information, see the “Monitoring  
the Voice Quality of Calls” section on page 8-23.  
Note  
The MOS LQK score can vary based on the  
type of codec that the Cisco Unified IP  
Phone uses.  
Avg MOS LQK  
Average MOS LQK score observed for the entire  
voice stream.  
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Call Statistics Screen  
Table 6-6 Call Statistics (continued)  
Item  
Description  
Min MOS LQK  
Lowest MOS LQK score observed from start of the  
voice stream.  
Max MOS LQK  
Baseline or highest MOS LQK score observed from  
start of the voice stream.  
These codecs provide the following maximum MOS  
LQK score under normal conditions with no frame  
loss:  
G.711 gives 4.5  
G.729 A /AB gives 3.7  
MOS LQK Version  
Version of the Cisco proprietary algorithm used to  
calculate MOS LQK scores.  
Cmltve Conceal Ratio  
Total number of concealment frames divided by total  
number of speech frames received from start of the  
voice stream.  
Interval Conceal Ratio  
Ratio of concealment frames to speech frames in  
preceding 3-second interval of active speech. If  
using voice activity detection (VAD), a longer  
interval might be required to accumulate 3 seconds  
of active speech.  
Max Conceal Ratio  
Conceal Secs  
Highest interval concealment ratio from start of the  
voice stream.  
Number of seconds that have concealment events  
(lost frames) from the start of the voice stream  
(includes severely concealed seconds).  
Severely Conceal Secs  
Number of seconds that have more than 5 percent  
concealment events (lost frames) from the start of  
the voice stream.  
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Chapter 6 Viewing Model Information, Status, Statistics, and Security Information on the Cisco Unified IP Phone  
Security Configuration Menu  
Security Configuration Menu  
The Security Configuration menu displays information about security settings on  
the phone and provides access to the certificate trust list (CTL) file screen and the  
trust list screen.  
To display the Security Configuration menu, follow these steps:  
Procedure  
Step 1  
Step 2  
Press the Settings button.  
Select Security Configuration.  
The Security Configuration menu provides these options:  
Web Access Enabled—Displays whether web access is enabled (Yes) or  
disabled (No) for the phone. You configure web access in  
Cisco Unified CallManager Administration.  
Security Mode—Displays the security mode that is set for the phone. You  
configure the security mode in Cisco Unified CallManager Administration.  
MIC—Displays whether a manufacturing installed certificate (used for the  
security features) is installed on the phone (Yes) or is not installed on the  
phone (No).  
LSC—Displays whether a locally significant certificate (used for the security  
features) is installed on the phone (Yes) or is not installed on the phone (No).  
CTL File—When the certificate trust list (CTL) file is installed, the MD5  
hash of the CTL displays. If no CTL file is installed on the phone, this field  
displays No. (If security is configured for the phone, the CTL file installs  
automatically when the phone reboots or resets. For more information about  
this file, refer to Cisco Unified CallManager Security Guide.)  
If a CTL file is installed on the phone, provides access to the CTL File screen.  
For more information, see the “CTL File Screen” section on page 6-21.  
Trust List—If a CTL file is installed on the phone, provides access to the  
Trust List screen. For more information, see the “Trust List Screen” section  
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Chapter 6 Viewing Model Information, Status, Statistics, and Security Information on the Cisco Unified IP Phone  
Security Configuration Menu  
CAPF—Displays the IP address and the port of the CAPF that the phone  
uses.  
Note  
To exit any menu or screen, press the Exit softkey.  
CTL File Screen  
The CTL File screen displays information as shown in Table 6-7 about the  
certificate trust list (CTL) file that is installed in the phone and provides access to  
the CTL File screen. If security is configured for the phone, the CTL file installs  
automatically when the phone reboots or resets. For more information about this  
file, refer to Cisco Unified CallManager Security Guide.  
To display the CTL File screen, follow these steps:  
Procedure  
Step 1  
Step 2  
Step 3  
Press the Settings button.  
Select Security Configuration.  
Select CTL File.  
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Chapter 6 Viewing Model Information, Status, Statistics, and Security Information on the Cisco Unified IP Phone  
Security Configuration Menu  
Table 6-7 describes the information that displays in the CTL File screen:  
Table 6-7 CTL File Information  
Item  
Description  
CTL File  
Displays the MD5 hash of the certificate trust list  
(CTL) file that is installed in the phone.  
A locked padlock icon  
in this option indicates  
that the CTL file is locked.  
An unlocked padlock icon  
file is unlocked.  
indicates that the CTL  
CallManager / TFPT  
CAPF  
IP address of a Cisco Unified CallManager and  
TFTP server used by the phone. Also displays a  
certificate icon  
server.  
if a certificate is installed for this  
IP address of the CAPF server used by the phone.  
Also displays a certificate icon  
installed for this server.  
if a certificate is  
To add or change the primary CallManager / TFTP server (TFTP Server 1) or  
secondary (TFTP Server 2) in the CTL File, you must unlock the CTL file before  
you can save changes. You must use the Network Configuration menu to make  
changes to the TFTP Server 1 option or to the TFTP Server 2 option. (For  
information about changing these options, see the “Network Configuration Menu  
Options” section on page 4-3.)  
To unlock the CTL file from the Security Configuration screen, follow these steps:  
Procedure  
Step 1  
Press **# to unlock options on the CTL File menu.  
If you decide not to continue, press **# again to lock options on this menu.  
Highlight the CTL option.  
Step 2  
Step 3  
Press the Unlock softkey to unlock the CTL file.  
After you change and save the TFTP Server 1 or the TFTP Server 2 option, the  
CTL file will be locked automatically.  
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Chapter 6 Viewing Model Information, Status, Statistics, and Security Information on the Cisco Unified IP Phone  
Security Configuration Menu  
Note  
When you press the Unlock softkey, it changes to Lock. If you decide not  
to change the TFTP Server 1 or TFTP Server 2 option, press the Lock  
softkey to lock the CTL file.  
Trust List Screen  
The Trust List screen displays information about all of the servers that the phone  
trusts. If a CTL file is installed on the phone, you can view the trust list.  
To access the Trust List screen, follow these steps:  
Procedure  
Step 1  
Step 2  
Step 3  
Press the Settings button.  
Select Security Configuration.  
Select Trust List.  
Table 6-8 describes the information that displays in the Trust List screen:  
Table 6-8 Trust List Information  
Item  
Description  
CAPF Server  
IP address of the CAPF used by the phone. Also  
displays a certificate icon  
installed for this server.  
if a certificate is  
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Chapter 6 Viewing Model Information, Status, Statistics, and Security Information on the Cisco Unified IP Phone  
Security Configuration Menu  
Table 6-8 Trust List Information (continued)  
Item  
Description  
CallManager / TFPT  
Server  
IP address of a Cisco Unified CallManager and  
TFTP server used by the phone. Also displays a  
certificate icon  
server.  
if a certificate is installed for this  
SRST Router  
IP address of the trusted SRST router that is  
available to the phone, if such a device has been  
configured in Cisco Unified CallManager  
Administration. Also displays a certificate icon  
if a certificate is installed for this server.  
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