Hi, > [Gao] I just wanted to say if UPDATE/200OK committed the target refresh, > it should be free for 4xx of Re-INVITE. I insist. You should re-read the draft. It explains why you should not use 4xx response to cancel changes. The advantage of the approach in the draft is that it does not require normative changes to already implemented specs. It is more a BCP kind of spec. That is why its backwards compatibility properties are good. Cheers, Gonzalo _______________________________________________ Sipping mailing list https://www.ietf.org/mailman/listinfo/sipping This list is for NEW development of the application of SIP Use sip-implementors@xxxxxxxxxxxxxxx for questions on current sip Use sip@xxxxxxxx for new developments of core SIP
