Re: [sipcore] location-conveyance-03 just submitted

["Winterbottom, James" <[e-mail]>]

Hi James,

I have similar sentiments to Martin, this is a greatly improved document.


> >Section 4.6 should reference draft-ietf-geopriv-deref-protocol.
> 
> how so?
> 
> It is already covered by the geopriv-filters
> reference. I do not believe anything more is necessary.
> 

I don't think that your response here answers the question.
Section 4.6 as is written now is saying that only a SIP, SIPS or PRES URI scheme can be carried in the Sip header.

" If a location URI is included in a SIP request, it MUST be a SIP-,
  SIPS- or PRES-URI.  When PRES: is used, as defined in [RFC3856], if
  the resulting resolution resolves to a SIP: or SIPS: URI, this
  section applies.  These schemes MUST be implemented according to
  this document.

   absoluteURI is not mandatory-to-implement, but allowed.

   See [ID-GEO-FILTERS] for more details on dereferencing location."

LOC Filters is all about subscribing for location information using SIP, and makes no reference to the HELD deref draft that Martin has requested reference to. Since we now have a working group item in Geopriv describing how an HTTP URI can be used as a location URI, it is being requested that the SIP conveyance document allow this in its prose, rather than excluding everything but a SIP-related method. I think that this is a reasonable request.

Cheers
James