Hi, if a UAS/proxy receives a CANCEL this will match a current INVITE transaction (same branch), so how can the UAS know if the CANCEL is the first CANCEL or a CANCEL retransmission? The same occurs with an ACK for a noon 2XX final response.
I think I have a idea of how to do it: The CANCEL also creates a transaction so first the UAS should also check the method. If there is a transaction with same branch and method (CANCEL) then it's a CANCEL retransmission, if not it's the first one. Is it correct? Thanks. -- Iñaki Baz Castillo _______________________________________________ Sip-implementors mailing list [email protected] https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
