Cisco 7906G Administration Manual page 48

Understanding Security Features for Cisco Unified IP Phones
Table 1-3 Overview of Security Features (continued)
Feature
Media encryption
Signaling Encryption
CAPF (Certificate Authority Proxy
Function)
Security profiles
Encrypted configuration files
Cisco Unified IP Phone 7906G and 7911G Administration Guide for Cisco Unified CallManager 5.1
1-16
Chapter 1
Description
Uses SRTP to ensure that the media streams between
supported devices proves secure and that only the intended
device receives and reads the data. Includes creating a media
master key pair for the devices, delivering the keys to the
devices, and securing the delivery of the keys while the keys
are in transport.
Ensures that all SCCP or SIP signaling messages that are sent
between the device and the Cisco Unified CallManager
server are encrypted.
Implements parts of the certificate generation procedure that
are too processing-intensive for the phone, and it interacts
with the phone for key generation and certificate installation.
The CAPF can be configured to request certificates from
customer-specified certificate authorities on behalf of the
phone, or it can be configured to generate certificates locally.
Defines whether the phone is nonsecure, authenticated, or
encrypted.
Lets you ensure the privacy of phone configuration files.
An Overview of the Cisco Unified IP Phone
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