Hi Inaki, It is valid to send BYE on early dialog. I just can't imagine myself why it is configurable on this B2BUA to send BYE on early dialogs when it wants to terminate the call (there is no one at incoming side). I don't see the purpose of it.
regards, Damir --- On *Mon, 5/11/09, Iñaki Baz Castillo <[email protected]>* wrote: From: Iñaki Baz Castillo <[email protected]> Subject: Re: [Sip-implementors] B2BUA release To: Cc: [email protected] Date: Monday, May 11, 2009, 1:53 PM 2009/5/11 Alex Balashov <[email protected]>: > > > Damir Reic wrote: > >> This is the question I'm asking because I've seen this B2BUA that actually >> has a configurable option to send BYE or CANCEL on early dialogs and I don't >> see any reasons for it. If someone does, please explain. > > AFAIK, that's not RFC-compliant, and, like you said, CANCEL is the only > thing to send in this situation. When an UAC sends an INVITE to a proxy/b2bua it can receive various early-dialogs (different To tags). If UAC wants to end a specific early dialog it sends a BYE with the "To tag" of that dialog. If the UAC want to end all the early-dialog it send a CANCEL (no To tag, of course) to the proxy/b2bua, and the proxy/b2bua will cancel all the branches. It's perfectly valid to send a BYE to termnate an early-dialog without cancelling the others. -- Iñaki Baz Castillo <[email protected]> _______________________________________________ Sip-implementors mailing list [email protected] https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors _______________________________________________ Sip-implementors mailing list [email protected] https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
