Table of Contents
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Chapter 1
An Overview of the Cisco Unified IP Phone
Providing Users with Feature Information
Understanding Security Features for Cisco
Unified SIP Phone 3951
Overview of Configuring and Installing Cisco
Unified IP Phones
OL-10969-01
If you are a system administrator, you are likely the primary source of information
for Cisco Unified IP Phone users in your network or company. To ensure that you
distribute the most current feature and procedural information, familiarize
yourself with Cisco Unified IP Phone documentation. Make sure to visit the
Cisco Unified IP Phone web site:
http://www.cisco.com/univercd/cc/td/doc/product/voice/c_ipphon/index.htm.
From this site, you can view access various user guides.
In addition to providing documentation, it is important to inform users of
available Cisco Unified IP Phone features—including those specific to your
company or network—and of how to access and customize those features, if
appropriate.
Cisco Unified SIP Phone 3951 support the following security features:
Digest authentication—When the phone makes any request, Cisco Unified
•
CallManager issues a challenge that requires the phone to respond with the
correct password.
Image Authentication—Image files can be sent as signed binary files (with
•
the extension .sbn) that is used to prevent tampering with the firmware image
before it is loaded on a phone. Tampering with the image causes a phone to
fail the authentication process and reject the new image.
When deploying a new IP telephony system, system administrators and network
administrators must complete several initial configuration tasks to prepare the
network for IP telephony service. For information and a checklist for setting up
Cisco Unified SIP Phone 3951 Administration Guide for Cisco Unified CallManager 5.1
Understanding Security Features for Cisco Unified SIP Phone 3951
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Table of Contents
Troubleshooting
