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Cisco Unified IP Phone 7906G and 7911G for Cisco Unified Communications Manager 6.0
OL11954-01
Chapter 1 An Overview of the Cisco Unified IP Phone
Understanding Security Features for Cisco Unified IP Phones
Secure SRST reference
(SCCP phones only)
After you configure a SRST reference for security and then
reset the dependent devices in Cisco Unified
Communications Manager Administration, the TFTP server
adds the SRST certificate to the phone cnf.xml file and sends
the file to the phone. A secure phone then uses a TLS
connection to interact with the SRST-enabled router.
Media encryption
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.
Signaling Encryption
(SCCP phones only)
Ensures that all SCCP signaling messages that are sent
between the device and the Cisco Unified Communications
Manager server are encrypted.
CAPF (Certificate Authority Proxy
Function)
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.
Table 1-3
Overview of Security Features (continued)
Feature
Description
Summary of Contents for 7906G - Unified IP Phone VoIP
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