Cisco Systems 7940G Manual De Usuario

You can configure parameters such as DHCP, TFTP, and IP settings on the phone itself. You can also 
obtain statistics about a current call or firmware versions on the phone. 

For more information about configuring features and viewing statistics from the phone, see 

 and see 

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:

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. 

For a summary of some of the key information that phone users need their system administrators to 
provide, see 

Implementing security in the Cisco Unified Communications Manager system prevents identity theft of 
the phone and Cisco Unified Communications Manager server, prevents data tampering, and prevents 
call signaling and media stream tampering. 

To alleviate these threats, the Cisco Unified IP telephony network establishes and maintains 
authenticated and encrypted communication streams between a phone and the server, digitally signs files 
before they are transferred to a phone, and encrypts media streams and call signaling between 
Cisco Unified IP phones.

 shows where you can find additional information about security in this and other documents.