Cisco Cisco IOS Software Release 12.4(2)XB6

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The Media and Signaling Encryption (SRTP/TLS) on DSP Farm Conferencing feature provides secure 
conferencing capability for Cisco Unified Communications Manager (Unified CM) networks, including 
authentication, integrity and encryption of voice media and related call control signaling to and from the 
digital signal processor (DSP) farm.

Your Cisco IOS software release may not support all of the features documented in this module. For the 
latest feature information and caveats, see the release notes for your platform and software release. To 
reach links to specific feature documentation in this module and to see a list of the releases in which each 
feature is supported, use the 

.

Use Cisco Feature Navigator to find information about platform support and Cisco IOS and Catalyst OS 
software image support. To access Cisco Feature Navigator, go to 

. An 

account on Cisco.com is not required.