Francois,

I am reasonably happy with this proposal, BUT I must point out the
following from RFC 3261:
"If the Request-URI indicates a resource at this proxy that does not
   exist, the proxy MUST return a 404 (Not Found) response.

   If the target set remains empty after applying all of the above, the
   proxy MUST return an error response, which SHOULD be the 480
   (Temporarily Unavailable) response."

Doesn't this fit into the first category, suggesting that 404 would be
appropriate? Or do we regard the existence of an AoR as meaning that
both SIP and SIPS resources exist, even if one or other has no
registered contacts?

John
 

> -----Original Message-----
> From: Francois Audet [mailto:[EMAIL PROTECTED] 
> Sent: 26 July 2007 22:03
> To: IETF SIP List
> Subject: [Sip] draft-ietf-sip-sips-05: 480 vs. 418
> 
> In the meeting, the issue of the error code to be used when the wrong
> URI is
> used in a request-URI (i.e., sip instead of sips, or vice-versa) came
> up.
> 
> The status quo is 2 new error codes (418 and 419). Another 
> proposal was
> to use only one
> (i.e., 418 with 2 new headers).
> 
> That proposal did not seem to get much traction. And people were not
> very with the
> status quo either. 
> 
> Another proposal was to use 480 (Temporarily Unavailable) and 
> NOT to use
> an explicit
> indication of the required/supported URIs (SIP, SIPS, etc.). 
> Of course,
> one can always
> put text in the reason phrase to describe the error for displaying to
> the end-use.
> 
> After talking to all the individual who seemed to have strong opinions
> on this topic,
> it appears that the 480 approach is the preferred approach. 
> 
> Please let the list know if you are strongly opposed to this outcome,
> along with the 
> reasons behind your opposition.
> 
> This is the last remaining issue to be closed in the draft, 
> as a result
> of WGLC.
> 
> 
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