Iñaki Baz Castillo wrote: > Hi, I've read Session Timers RFC but it's a bit confusing for me. I've a > basic > doubt: > > alice proxy bob > > - alice calls bob. > - proxy doesn't implement SessionTimers (in the way a proxy could implement > it). > - bob implements SessionTimers and want to use them. > > In this scenario, can SessionTimers work? Thanks. > >
All session timers do is provide a mechanism to prompt periodic session refreshes (either by reINVITE or UPDATE). If a UA wishes to perform a session refresh anyway, it is free to do so, regardless of any indicated 'session timer' support by any other node. In your scenario, Bob may send a reINVITE whenever Bob feels the need. As can Alice, even though Alice doesn't support session timers. The only node unable to cause session refreshes is your proxy, and the point behind RFC4028 is to allow proxies to influence the refreshes. Hope this helps, Michael _______________________________________________ Sip-implementors mailing list [email protected] https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
