On Tue, Oct 28, 2008 at 10:55 AM, Juha Heinanen <[EMAIL PROTECTED]> wrote: > Victor Pascual Ávila writes: > > > Concerning to the "lower delay", were you using any timer other than > > Timer F (64*T1)? > > no, i'm just comparing the number of messages that each cause some > delay. > > in case of a presence based solution, caller needs to publish its > dialog, not just send an invite, which means more messages. > > when presence server receives subscribe from callee, it needs to make > xcap query, before it can reply, which in again means more delay.
I'm afraid that you are assuming that a presence server is used. Derive is an _end-to-end mechanism_ implemented in the UAs. Cheers, -- Victor Pascual Ávila _______________________________________________ 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
