Christer, > >Case 1: You're a basic endpoint or PSTN Gateways the UAC, and have to > pick one of many 183 w/SDP responses for which to > >play early media for. Typically they pick the first one > received, and > don't change until the 200 ok. (some pick the > >most recently received one instead, but that's just guessing too) So > if I call Bob, and it went to a simple find-me- > >follow-me service, the service plays "we're looking for Bob, please > hold...". Once it finds Bob, and Bob's phone rings, > >I would like my UAC to stop listening to the announcement and instead > switch to Bob's ringback. So the proxy needs to > >send my UAC the 199. > > Correct. That is how many gateways/UACs work today, and one use-case > I've had in mind where 199 could be useful. The reaons I didn't add it > to the draft before was because it is not so much related to > resources, > but more to early dialog policy, but for sure I could add it to the > draft. [JRE] Personally I think this is a more compelling use case.
John _______________________________________________ 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
