Re: [Sipping] Summary of Closing the offer/answer rollback issue?

[Hadriel Kaplan <HKaplan at acmepacket.com>]

> -----Original Message-----
> From: Christer Holmberg [mailto:christer.holmberg at ericsson.com]
> Sent: Sunday, March 01, 2009 4:31 PM
>
> I think the one of the main issues at the moment is what happens after
> preconditions have been met on both sides:
>
> 1) Is the change now commited/in-use, and a re-INVITE failure would not
> change that?                                       <----- "in-use"
> alternative
> OR
> 2) Would a re-INVITE failure cause a fallback (this is what is meant by
> "late commitment")?                                <---- "late
> commitment" alternative

Ahh.  Well if that's the issue, I vote for doing exactly whatever would happen if a normal (non-pre-conditional) SDP offer/answer is exchanged and the re-INVITE fails.  I have absolutely no idea what that would be, but it should be the same. :)
(I mean I know what 3261 says, that it reverts all the way back, but I have no idea if that's actually what most people do)

If I had my druthers the SDP change would stick (not revert), because I personally think it's cleaner, but I can see an argument for both ways.

-hadriel