Prevedini Paolo wrote: > Hi all, > > What is the difference between the expire header value in the INVITE > message and C timer
Af far as I know Timer C should be used by SIP proxy, while Expire header is intended for the final UAS to notify it about time constrains. I don't think those two are related. > In an early media session, should an UAC refresh the expire header value > after receiving a provisional response (i.e. 183 Session Progress)? It is not clear what "refresh" means in this context. If you are talking about expiration timer, then no, it has to be armed by UAC before sending INVITE out and no provisional response could affect its duration. Regards, -- Maksym Sobolyev Sippy Software, Inc. Internet Telephony (VoIP) Experts T/F: +1-646-651-1110 Web: http://www.sippysoft.com MSN: [email protected] Skype: SippySoft _______________________________________________ Sip-implementors mailing list [email protected] https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
