Any re-INVITE or UPDATE (provided it contains the correct Session Timer headers) will refresh the session.
offer-answer exchange is not relevant with respect to refreshing the session. In other words, SDP content has no effect on the session refresh timers. Regards, Attila -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of [EMAIL PROTECTED] Sent: 13 December 2006 11:10 To: [email protected] Subject: [Sip-implementors] Query related to Session timer Hi, If normal Re-invite or UPDATE are processed after session timer is negotiated in call, will it extend the session interval for refresh. For example, A and B negotiates 3600 seconds for session refresh and A is the refresher. Suppose A holds after 500 seconds,i.e A send Re-invite to B, will that reinvite refresh the session interval on both A and B. >From my understanding, session interval will not be refreshed if Re-invite or UPDATE do not contain Session-Expires header. Also, I have seen many UAs not implementing origin field of SDP to indicate the session refresh Re-INVITE as only session refresh and not offer-answer exchange. Does it mean then both session timer fnctionality and offer-answer exchange has to be done for the session-refresh REINVITEs Please let me know if my understanding is correct. Thanks, Udit _______________________________________________ Sip-implementors mailing list [email protected] https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors _______________________________________________ Sip-implementors mailing list [email protected] https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
