SIP Identity using Media Path
Cisco Systems
Acme Packet
This document defines a new SIP identity mechanism which operates through SBCs and B2BUAs. This new identity mechanism creates a signature over certain SIP headers and certain SDP lines. When the SIP body contains SDP, both the SIP signaling path and the media path are used to perform the identity function; when the SIP body contains non-SDP body parts, they are signed in their entirety.