Cisco Systems IP Phone OL 5109 01 User Manual

C H A P T E R  
4
Phone Hardening  
To tighten security on the phone, you can perform tasks in the Phone  
Configuration window of Cisco CallManager Administration.  
This chapter contains information on the following topics:  
Cisco IP Phone Authentication and Encryption for Cisco CallManager 4.0(1)  
OL-5109-01  
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Chapter 4 Phone Hardening  
Disabling the Setting Access Setting  
Related Topics  
Interactions and Restrictions, page 1-4  
Cisco IP Phone Administration Guide for Cisco CallManager  
Disabling the Setting Access Setting  
By default, pressing the Settings button on a Cisco IP Phone provides access to a  
variety of information, including phone configuration information. Disabling the  
Setting Access setting in the Phone Configuration window of Cisco CallManager  
Administration prohibits access to all options that normally display when you  
press the Settings button on the phone; for example, the Contrast, Ring Type,  
Network Configuration, Model Information, and Status settings.  
The preceding settings do not display on the phone if you disable the setting in  
Cisco CallManager Administration. If you disable this setting, the phone user  
cannot save the settings that are associated with the Volume button; for example,  
the user cannot save the volume.  
Disabling this setting automatically saves the current Contrast, Ring Type,  
Network Configuration, Model Information, Status, and Volume settings that  
exist on the phone. To change these phone settings, you must enable the Setting  
Access Setting in Cisco CallManager Administration.  
Related Topics  
Interactions and Restrictions, page 1-4  
Cisco IP Phone Administration Guide for Cisco CallManager  
Disabling the PC Port Setting  
By default, Cisco CallManager enables the PC port on all Cisco IP Phones that  
have a PC port. If you choose to do so, you can disable the PC Port setting in the  
Phone Configuration window of Cisco CallManager Administration. Disabling  
the PC port proves useful for lobby or conference room phones.  
Cisco IP Phone Authentication and Encryption for Cisco CallManager 4.0(1)  
OL-5109-01  
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Chapter 4 Phone Hardening  
Performing Phone Hardening Tasks  
Related Topics  
Interactions and Restrictions, page 1-4  
Cisco IP Phone Administration Guide for Cisco CallManager  
Performing Phone Hardening Tasks  
Caution  
The following procedure disables functionality for the phone.  
Perform the following procedure:  
Procedure  
Step 1  
Step 2  
In Cisco CallManager Administration, choose Device > Phone.  
Specify the criteria to find the phone and click Find or click Find to display a list  
of all phones.  
Step 3  
Step 4  
To open the Phone Configuration window for the device, click the device name.  
Locate the following product-specific parameters:  
PC Port  
Settings Access  
Gratuitous ARP  
PC Voice VLAN Access  
Web Access  
Tip  
To review information on these settings, click the "i" button help that  
displays next to the parameters on the Phone Configuration window.  
Cisco IP Phone Authentication and Encryption for Cisco CallManager 4.0(1)  
OL-5109-01  
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Chapter 4 Phone Hardening  
Performing Phone Hardening Tasks  
Step 5  
Step 6  
From the drop-down list box for each parameter that you want to disable, choose  
Disabled.  
Click Update.  
Related Topics  
Interactions and Restrictions, page 1-4  
Cisco IP Phone Authentication and Encryption for Cisco CallManager 4.0(1)  
OL-5109-01  
4 -5  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Chapter 4 Phone Hardening  
Performing Phone Hardening Tasks  
Cisco IP Phone Authentication and Encryption for Cisco CallManager 4.0(1)  
Download from Www.Somanuals.com. All Manuals Search And Download.  
OL-5109-01  
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