Hi,

The please-perform-parallel-forking-to-the-same-intance-id extension
indication would then be brought as a separate draft.

Regards,

Christer

-----Original Message-----
From: Elwell, John [mailto:[EMAIL PROTECTED] 
Sent: 17. lokakuuta 2008 10:44
To: Paul Kyzivat; Dean Willis
Cc: Christer Holmberg; Bob Penfield; Juha Heinanen; [email protected]
Subject: RE: [Sip] Dual registration without Outbound

+1

John 

> -----Original Message-----
> From: Paul Kyzivat [mailto:[EMAIL PROTECTED]
> Sent: 17 October 2008 01:08
> To: Dean Willis
> Cc: Christer Holmberg; Elwell, John; Bob Penfield; Juha Heinanen; 
> [email protected]
> Subject: Re: [Sip] Dual registration without Outbound
> 
> I agree.
> 
>       Paul
> 
> Dean Willis wrote:
> > 
> > On Oct 16, 2008, at 8:30 AM, Paul Kyzivat wrote:
> >>
> >> Making this behavior "possible but not default" means that
> there must
> >> be two options: "do it", and "don't do it". The choice of
> which to do
> >> would need to be encoded somewhere. This matters a lot to
> the UA, so I
> >> think this option would have to be encoded as part of the
> registration
> >> request. Thus outbound would have to change to accommodate it.
> > 
> > 
> > If you want outbound's redundant-flow functionality, which
> is dependent
> > on requests NOT forking to each flow to a UA, use outbound
> as specified.
> > 
> > If instead you want your two contacts treated as two
> different instances
> > so that requests will fork to them, use two different instance-id 
> > values. Essentially, you're using single-contact/single
> flow Outbound
> > (i.e., keepalive and reverse-routing of requests without
> redundant-flow)
> > simultaneously on two different contacts (which may well be two 
> > different interfaces).
> > 
> > If you want both outbound's features simultaneously on multiple 
> > instances (or use virtual interfaces by having multiple
> instances on the
> > same interface), then apply outbound as specified on each instance, 
> > where there are at least two proxies configured for each instance.
> > 
> > About the only thing I can see needing to document somewhere is the 
> > concept of using multiple instance-ids to make virtual
> interfaces, and
> > that's pretty simple.
> > 
> > --
> > Dean
> > 
> > 
> 
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