Understanding Security Features For Cisco Unified Ip Phones; Overview Of Supported Security Features - Cisco 7921G - Unified Wireless IP Phone VoIP Administration Manual

Understanding Security Features for Cisco Unified IP Phones

Table 1-1
Topic
Troubleshooting
Resetting or restoring the phone
For information about supported security options for the Cisco Unified Wireless IP Phone 7921G, see
the

Overview of Supported Security Features

Table 1-2
supports. For more information about these features and about Cisco Unified Communications Manager
and Cisco Unified IP Phone security, refer to Cisco Unified Communications Manager Security Guide.
For information about current security settings on a phone, choose SETTINGS > System
Configuration > Security Configuration. For more information, see the
Information" section on page
Most security features are available only if a certificate trust list (CTL) is installed on the phone. For
Note
more information about the CTL, refer to "Configuring the Cisco CTL Client" chapter in the Cisco
Unified Communications Manager Security Guide.
Table 1-2
Feature
Image authentication
Customer-site certificate
installation
Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0
1-8
Cisco Unified IP Phone and Cisco Unified Communications Manager
Security Topics (continued)
"Authentication Methods" section on page
provides an overview of the security features that the Cisco Unified Wireless IP Phone 7921G
Overview of Security Features
Chapter 1
Reference
See the
section on page 10-14
Refer to Cisco Unified Communications Manager
Security Guide, Troubleshooting chapter
See the
on page 10-18
2-14.
8-1.
Description
Prevents tampering with the firmware image before it is loaded on
a phone by using signed binary files (with the extension.sbn).
Tampering with the image causes a phone to fail the authentication
process and reject the new image.
Authenticates each Cisco Unified IP Phone by using a unique
certificate. Phones include a manufacturing installed certificate
(MIC), but for additional security, you can specify in Cisco
Unified Communications Manager Administration that a certificate
be installed by using the Certificate Authority Proxy Function
(CAPF). Alternatively, you can install a locally significant
certificate (LSC) from the Security Configuration menu on the
phone. See the "Configuring the Security Certificate on the Phone"
section on page 5-12
Overview of the Cisco Unified Wireless IP Phone 7921G
"General Troubleshooting Information"
"Erasing the Local Configuration" section
"Viewing Security
for more information.
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