> From: Paul Kyzivat <pkyzi...@alum.mit.edu> > I disagree here. UA B would be irresponsible if it created an INVITE > including a header field that it doesn't understand.
Why would it be irresponsible? It's not UA B that's deciding to produce the INVITE, it's the element that sends the REFER to UA B that is deciding that Replaces is needed. And that element is responsible for deciding to what to do if destination of the INVITE does not understand Replaces -- ignore it (the default) or reject the INVITE (by also putting "&Require=replaces" into the Refer-To URI). Dale _______________________________________________ Sip-implementors mailing list Sip-implementors@lists.cs.columbia.edu https://lists.cs.columbia.edu/mailman/listinfo/sip-implementors