> Can someone help me with any RFC reference on how a server or > a call statefull Proxy should handle a SIP BYE which is using > a wrong (duplicate) branch parameter ?
RFC 3261 section 17.2.3 discusses the topic. The behavior depends upon magic cookie. If cookie, transaction matching uses Via branch, sent-by, and method. Within your situation, the received BYE would evaluate to a different transaction. If no cookie, an evaluation based upon the RFC 2543 rules apply. Within your situation, the received BYE would evaluate to a different transaction. I consider the cookie rule overly simplified when cookie present since it allows a transaction to match even if the Call-ID is different. You may or may not prefer to be as lenient as section 17.2.3 indicates. _______________________________________________ Sip-implementors mailing list Sip-implementors@lists.cs.columbia.edu https://lists.cs.columbia.edu/mailman/listinfo/sip-implementors
