[VOIPSEC] Does anyone know what the Key Management(MIKEY, KEYMGT, ...) of SRTP in Cisco IP phone?

Dan Wing dwing at cisco.com
Thu Aug 18 16:14:47 PDT 2005


> Does anyone know what the Key Management (MIKEY,KEYMGT,...) 
> of SRTP in Cisco IP phone?

Cisco's IP phones do SRTP only when signaled with Cisco's
proprietary SCCP ("Skinny" protocol), when SCCP is running
over mutually-authenticated TLS, and the phone and Call 
Manager are configured to enable SRTP.  Although SCCP 
doesn't use SDP, the SRTP keys are exchanged in the SCCP 
signaling using a technique similar to 
draft-ietf-mmusic-sdescriptions-11.txt.

-d




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