At 04:03 PM 7/26/2007, Francois Audet wrote:
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).
(BTW 419 is used by Cullen's hashcash draft)
Another proposal was to use only one (i.e., 418 with 2 new headers).
I would advocate this proposal, especially verses a 480, as a (new)
Reason code to give the specifics can easily be stripped along the
way back to the UAC, leaving it clueless as to what the actual
problem was. Also not all implementations support Reason (though they
should).
A 418 is specific to the point of what was wrong.... and all UACs
have to deal with the fact they can become a 400 (thus removing the details)
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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