[AVTCORE] Re: BUNDLE question - relationship to PR-Answer?

[Paul Kyzivat <[e-mail]>]

Roman,

On 4/21/26 11:14 PM, Roman Shpount wrote:
> Paul,
> 
> I think I can provide some context here. WebRTC acts similarly to a 
> physical SIP UA when placing a call. When multiple parallel dialogs are 
> created for a single outbound call, it is hard to represent this to the 
> user. At the same time, if you get several dialogs that occur one after 
> the other, it should be possible for a normal SIP UA to handle this 
> gracefully, discard the dialog created by the previous provisional 
> answer, and re-run the offer/answer for the new dialog, and present the 
> user with what appears to be a single call.
> 
> So, in case Harald is asking about, the case
> 
> Offer: BUNDLE(a, b)
> PR-Answer: BUNDLE(a, b)
> Answer: No bundle
> 
> should be handled the same as
> 
> Offer: BUNDLE(a, b)
> Answer: No bundle
> 
> The use case is that the call connects to a user's phone and establishes 
> an early media session with bundle to play ringback. The call to the end 
> user device times out, and the call is connected to an answering service 
> that does not support bundle to record the message.

The original question didn't say whether the PR-Answer and Answer were 
in the same fork or different forks.

*If* they are in different forks then then I agree.

	Thanks,
	Paul