Re: [Sip] INFO Framework: Tags

["Christer Holmberg" <christer.holmberg at ericsson.com>]

Hi,

I still think we shall have an option tag for the extension itself.

Eventhough it does not gurantee that the UAS supports specific info
packages, at least you can use it to help finding a UAS which supports
the extensions (by using the sip.extensions feature tag).

And, as Dean said, it can be used with OPTIONS.

Regards,

Christer

 

-----Original Message-----
From: DRAGE, Keith (Keith) [mailto:drage at alcatel-lucent.com] 
Sent: Friday, November 21, 2008 12:50 AM
To: Dean Willis; Paul Kyzivat
Cc: SIP List; Elwell, John; Christer Holmberg
Subject: RE: [Sip] INFO Framework: Tags

In which case you need an option tag for the info package itself.

Noone is precluding that.

regards

Keith 

> -----Original Message-----
> From: Dean Willis [mailto:dean.willis at softarmor.com]
> Sent: Thursday, November 20, 2008 10:47 PM
> To: Paul Kyzivat
> Cc: DRAGE, Keith (Keith); SIP List; Elwell, John; Christer Holmberg
> Subject: Re: [Sip] INFO Framework: Tags
> 
> 
> On Nov 20, 2008, at 4:08 PM, Paul Kyzivat wrote:
> 
> >
> >
> > Dean Willis wrote:
> >
> >> If I don't support info-packages, then I MIGHT support
> old-info. If I
> >> do, then I MIGHT understand an INFO (or the legacy set),
> and I MIGHT
> >> send you one (from the legacy set). But I'm very, very unlikely to 
> >> understand any of the new CID-indirection-to-select-a- body, 
> >> multiple-body stuff, so don't send it!
> >
> > Dean,
> >
> > You don't need an option tag for this. After the invite, I
> can't send
> > you an info package unless you have provided a Recv-Info for it.
> 
> Okay, I'm willing to believe that.
> 
> What if I have an application that really, really requires
> info- packages, so I want the call to fail if you can't handle them?
> 
> Would this arise, or would it always be preferable to complete the 
> INVITE exchange, then tear the call down once I find out that you 
> don't?
> 
> --
> Dean
> 
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