Avaya SBC supports encrypted audio and multiple video media such as main video, video presentation, and Far End Camera Control (FECC) based on SDP capability negotiation.
If the far-end entity does not support SRTP encryption, Avaya SBC converts one leg of the call as RTP and the other leg as SRTP by using the SDP negotiation. The conversion between the originating and terminating legs depends on the cipher policy administered on Avaya SBC.
Avaya SBC does not use Master Key Identifier (MKI) and encrypted RTCP for Avaya Meetings Server interoperability. Avaya SBC negotiates the SDP session by using non-encrypted RTCP.
Note:
Avaya SBC supports SRTP calls over SIP, but Avaya Aura® supports SRTP calls only when the call uses the TLS protocol.
