Hi, RFC 3581 defines the usage of ;rport Via param in order for a server to send UDP responses to the request source port (rather than the port indicated in Via sent-by).
But this is completely useless in SIP over TCP as, per RFC 3261, responses are primary sent over the same connection in which the request was received. If the connection is broken, next attemp uses request's Via sent-by host and port. So, MUST a server perform the ;rport inspection for a SIP request coming over TCP? I know it MAY, I just want to know if it MUST do it. Thanks. -- Iñaki Baz Castillo <i...@aliax.net> _______________________________________________ Sip-implementors mailing list Sip-implementors@lists.cs.columbia.edu https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors