> I do wish that RFC 6086 was a bit more specific. It only states INVITE or > UPDATE in-dialog transactions as refreshers, but, nowhere does it state that > they are the only ones allowed for refreshing. A little bit of wording change > would have saved a lot of headaches.
I agree that RFC 4028 potentially could have used more normative text; however it does indicate the following. Section 4: "The Session-Expires header field conveys the session interval for a SIP session. It is placed only in INVITE or UPDATE requests, as well as in any 2xx response to an INVITE or UPDATE." _______________________________________________ Sip-implementors mailing list Sip-implementors@lists.cs.columbia.edu https://lists.cs.columbia.edu/mailman/listinfo/sip-implementors