Re: draft-kaplan-sip-session-id-00.txt
Paul Kyzivat <[email protected]>
| Newsgroups | gmane.ietf.sip |
|---|---|
| Message-ID | <[email protected]> |
OK, at least the answers are the ones I was expecting to get. You mentioned something like "dialog-set". I'm not certain yet if "set" is the proper term here. But assume for the moment that it is. Then what you really have is a "dialog-set-id" right? Not a session-id. It would be good to have a formal definition of a dialog-set. That would help with sorting out when individual dialogs get the same dialog-set-id. It might also go a long way toward providing a basis for defining an SBC and what it can/can't do. (I suspect that an SBC creates dialog-sets, and other B2BUAs do not.) Thanks, Paul Hadriel Kaplan wrote: > >> -----Original Message----- >> From: [email protected] [mailto:[email protected]] On Behalf Of Paul >> Kyzivat >> Sent: Wednesday, December 03, 2008 1:30 PM >> >> If a B2BUA (B) is doing 3pcc: >> >> |------ C >> | >> A ------ B >> | >> |------ D >> >> and it first connects A to C, and later transfers the call to D, will A >> and C and D all have the same Session-Id? > > Yes, under the current model it would. It's not a necessary scenario to have the same Session-ID, IMO, but it's covered that way. (but clearly the remote-tag would not match if D sent a Subscribe to A) > > >> Then take same picture, but make B be a conference focus, to which A, C >> and D are all connected. Will they ever have the same Session-Id? > > As currently defined no, it would not. I talked to some people about that at the IETF meeting, and they thought that was the right thing to do, as do I; but we couldn't define a textual explanation of what properties made that right. > > >> Also, how are dialog event packages supposed to work? Is it expected >> that they will be extended to contain Session-Ids? > > Yes. As an optional XML element update to them, which only gets used for matching if the call-id element did not match. > > -hadriel > _______________________________________________ > 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 > _______________________________________________ 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