I still don't get it, I'm sorry:

On Tue, Apr 23, 2019 at 05:34:21PM -0400, Paul Kyzivat wrote:

> 1) it doesn't have any idea what codecs, or even what media, either of
> the endpoints support.

Yes, but how does a late offer confer this knowledge in some materially
different way to a normal one?

> 2) since it isn't planning on terminating the media it has no media
> address to include in an initial offer.

If it isn't planning on terminating the media, why wouldn't it just pass
through the SDP offer from the caller as-is, as any proxy or B2BUA (sans
integrated media apparatus) would?

In other words, what exactly is being accomplished for the benefit of a
third-party call controller via a late offer that can't be accomplished
via a normal one?

-- 
Alex Balashov | Principal | Evariste Systems LLC

Tel: +1-706-510-6800 / +1-800-250-5920 (toll-free) 
Web: http://www.evaristesys.com/, http://www.csrpswitch.com/
_______________________________________________
Sip-implementors mailing list
Sip-implementors@lists.cs.columbia.edu
https://lists.cs.columbia.edu/mailman/listinfo/sip-implementors

Reply via email to