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Re: [Sip] Soliciting opinions on draft-khartabil-sip-policy-uri-call-info-purpose-01.txt

Hi,

I already said some time ago that I would have preferred to define a new header, instead of reusing Call-Info, for this type of application. We will have applications that will pass URIs to the UAC in a Call-Info header when there is no "Call" at all. It is not the case of conferencing, but it will happen with other applications.

In any event, given that it seems that the WG believes that this is OK to use Call-Info for this type of problem, the draft looks OK.

Regarding documentation, we may be able to include the definition of the new purpose value in another conferencing document... it would only involve adding a couple of new paragraphs to such a document. If, for some reason, folks do not want to include it in another document, it would need to become a WG item on its own.

Thanks,

Gonzalo

hisham.khartabil at nokia.com wrote:

http://www.ietf.org/internet-drafts/draft-khartabil-sip-policy-uri-call-info-purpose-01.txt

Abstract

   The Session Initiation Protocol (SIP) defines the Call-Info header
   field.  This header field delivers additional information about the
   originator or recipient of a SIP request.  Information in the
   Call-Info is generally a Uniform Resource Identifier (URI), and the
   exact purpose of this URI is described with the "purpose" parameter.
   This document introduces a new purpose parameter value of
   "conf-policy" that can be used by a conference server to indicate to
   a conference participant User Agent (UA) that the URI carried in the
   Call-Info header field is a URI for accessing the conference policy
   of a particular conference.

This is useful for clients that do not wish to subscribe to the conference event package to learn the conference policy server URI.

I would like people to indicate on the list if they have read the draft, have any opinions or comments about it. The authors will request from the chairs for this draft to be adopted as a WG item.

Regards,
Hisham



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