Re: [Sip] How to make draft-ietf-sip-199 more useful

["Francois Audet" <audet at nortel.com>]

Yes, I agree with Christer. (wow!) 

> -----Original Message-----
> From: Christer Holmberg [mailto:christer.holmberg at ericsson.com] 
> Sent: Wednesday, November 19, 2008 20:52
> To: Elwell, John; Audet, Francois (SC100:3055); IETF SIP List
> Subject: RE: [Sip] How to make draft-ietf-sip-199 more useful
> 
> 
> Hi, 
> 
> >I would like to make draft-ietf-sip-199 more useful by expanding it's
> capabilities.
> > 
> >I would like to add a REQ-2 that allows that the Proxy to 
> indicate WHY 
> >the dialog was terminated.
> > 
> >This would be done by having the 199 response include (as a sifrag or
> >watever) the actual error response that terminated the dialog. At a 
> >minimum it would include the value of the error code itself.
> > 
> >I would like to add text in the second-to-last paragraph of 
> section one 
> >that explains that the reason for specific dialogs to be 
> terminated may 
> >be useful for the client to take appropriate action (for example, by 
> >re-attempting a call to a specific branch when the error is 
> >recoverable).
> >[JRE] But how would the re-attempted call to a specific branch be
> achieved? What goes in the Request-URI - the received 
> >Contact URI? Then presumably Route header fields would need 
> to be added
> based on Record-Routes from the previous dialog? 
> >Or if the Contact URI has GRUU properties, I guess Route 
> isn't needed.
> But what if a temporary GRUU - would it still be 
> >valid?
> 
> Those are interesting questions, but go beyond the scope of the draft.
> 
> My proposal is to add text about including the original 
> response code, but NOT specify procedures for solving HERFP 
> problems etc.
> 
> Regards,
> 
> Christer
> 
> 
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