Re: bug in draft-ietf-sip-gruu-15 grammar
Paul Kyzivat <[email protected]>
| Newsgroups | gmane.ietf.sip |
|---|---|
| Message-ID | <[email protected]> |
Hey, you mean that is actually *used*! Its nice to learn that what started out as a weird corner case or only theoretical interest actually turns up in practice! Thanks, Paul Dale Worley wrote: > On Mon, 2009-04-13 at 10:49 -0400, Paul Kyzivat wrote: >> Its been quite awhile and my memory may be getting a little fuzzy on >> this, but... >> >> As I recall there are some very subtle points about this. There are >> cases where someone other than the UA doing the registering may need the >> gruu. So the UA that registers its contact may not support GRUU, the >> gruu need be allocated so others can use it. For instance, if some other >> UA registers the same AOR, and does support gruu, it will get back all >> the contacts, and should get back gruus for all of them. Similarly, any >> who subscribe to the reg event package. > > You're correct. It was explicitly designed that the registrar would > create a GRUU even if the UA registering did not support GRUU. In > particular, this GRUU would be visible in reg events for the AoR in > question, which allows *other* UAs that want to know the GRUU of the > registering UA to find it. > > (E.g., the sipX open-source PBX takes advantage of this.) _______________________________________________ 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