Iñaki Baz Castillo writes: > > > I'm afraid that you are assuming that a presence server is used. > > > Derive is an _end-to-end mechanism_ implemented in the UAs. > > > > if i have configured my proxy to use presence server for local users, > > how does subscribe reach the UA? > > If you proxy includes a dialog presence server, then the SUBSCRIBE > doesn't need to reach the UA since your proxy already has the > information about dialogs of that UA.
inaki, now i'm confused again. in above, you say that this is a UA thing, now you seem to indicate, that proxy needs to keep track of the dialogs. so far i'm not convinced that proxy can reliable keep track of dialogs. in openser/kamailio environment, for example, keeping track of dialogs is implemented using dialog module, which has the history of being the most buggies module of all. perhaps that is due to the difficulty of the problem, i.e., proxy is made to do something it is not really intended for. -- juha _______________________________________________ Sip mailing list https://www.ietf.org/mailman/listinfo/sip This list is for NEW development of the core SIP Protocol Use [EMAIL PROTECTED] for questions on current sip Use [EMAIL PROTECTED] for new developments on the application of sip
