[Jingle] XEP-0176 - putting many candidates in initiate/accept

Olivier Crête olivier.crete at collabora.co.uk
Wed Apr 8 17:28:37 CDT 2009


On Wed, 2009-04-08 at 16:23 -0600, Peter Saint-Andre wrote:
> On 4/8/09 4:21 PM, Olivier Crête wrote:
> > On Wed, 2009-04-08 at 15:16 -0700, Justin Karneges wrote:
> >> On Wednesday 08 April 2009 15:04:30 Peter Saint-Andre wrote:
> >>> On 4/7/09 6:34 PM, Justin Karneges wrote:
> >>>> Peter says this was to help simplify the state machine.
> >>>> However, transport-info is still in the XEP and expected to be supported,
> >>>> so I don't see how this resulted in any simplification.  I just wanted to
> >>>> point out that if anyone is planning to write a client that doesn't
> >>>> understand transport-info (/me looks at whoever suggested this change),
> >>>> compatibility will be lost.
> >>> Clients need to support transport-info. If they don't, we'll file bug
> >>> reports. :)
> >> Good.  But, then I don't fully understand the rationale for putting candidates 
> >> in initiate/accept and therefore having two ways to do the same thing.
> > 
> > My understanding of SIP is that you need all the candidates before you
> > send an offer or a response. With the current transport-info, I'm not
> > sure how that can happen? Forcing all the candidates into the
> > initiate/accept solves that, I'm not sure how it can be done if
> > transport-info is used. 
> > 
> > Maybe the SIP gateway people can enlighten us?
> 
> That's when you use urn:ietf:rfc:3264 feature. If the other side
> advertises that, you send everything in the session-initiate and never
> send transport-info.

Ah right, sorry, I missed that part..!


-- 
Olivier Crête
olivier.crete at collabora.co.uk
Collabora Ltd
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