Hi, RFC 5393 states (in section 4.2.1)
This second part MUST NOT vary with the request method. CANCEL and non-200 ACK requests MUST have the same branch parameter value as the corresponding request they cancel or acknowledge. This branch parameter value is used in correlating those requests at the server handling them (see Sections 17.2.3 and 9.2). but it also states in section 4.2.4 The Call-ID and CSeq fields would be good inputs for this purpose. I think that CSeq here refers to the sequence number alone (excluding the method). Is this correct? Thanks Pandu _______________________________________________ Sip-implementors mailing list [email protected] https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
