A New Internet-Draft is available from the on-line Internet-Drafts directories.
Title : SIP Identity using Media Path
Author(s) : D. Wing, H. Kaplan
Filename : draft-wing-sip-identity-media-01.txt
Pages : 25
Date : 2007-11-15
The existing SIP identity mechanism (RFC4474) creates a signature
over the SIP body, including the entire SDP. As part of their normal
operation, Session Border Controllers (SBCs) and SIP Back-to-Back
User Agents (B2BUAs) modify various fields in the SDP which breaks
that signature.
This document defines a new identity mechanism which operates with
SBCs and B2BUAs. This new identity mechanism creates a signature
over certain SIP headers and certain SDP lines, and uses both SIP
signaling and the media path to perform its identity function.
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