Re: [Sip] INFO Framework: Tags

["DRAGE, Keith \(Keith\)" <drage at alcatel-lucent.com>]

But what does an option tag in OPTIONS tell you over and above a 200
(OK) response to OPTIONS with a Recv-Info header. 

regards

Keith

> -----Original Message-----
> From: Christer Holmberg [mailto:christer.holmberg at ericsson.com] 
> Sent: Thursday, November 20, 2008 10:53 PM
> To: DRAGE, Keith (Keith); Dean Willis; Paul Kyzivat
> Cc: SIP List; Elwell, John
> Subject: RE: [Sip] INFO Framework: Tags
> 
> 
> 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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