Protocol Action: 'Indicating Fax over IP Capability in the Session Initiation Protocol (SIP)' to Proposed Standard (draft-hanes-dispatch-fax-capability-08.txt)

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The IESG has approved the following document:
- 'Indicating Fax over IP Capability in the Session Initiation Protocol
   (SIP)'
  (draft-hanes-dispatch-fax-capability-08.txt) as Proposed Standard

This document has been reviewed in the IETF but is not the product of an
IETF Working Group.

The IESG contact person is Gonzalo Camarillo.

A URL of this Internet Draft is:
http://datatracker.ietf.org/doc/draft-hanes-dispatch-fax-capability/




       Technical Summary:

This document defines and registers with IANA the new 'fax' media
feature tag for use with SIP.  Currently, fax calls are
indistinguishable from voice at call initiation.  Consequently, fax
calls can be routed to SIP user agents that are not fax capable.  A
'fax' media feature tag implemented in conjunction with caller
preferences allows for more accurate fax call routing.
 
        Working Group Summary:
        Was the document considered in any WG, and if so, why was
        it not adopted as a work item there? Was there controversy
        about particular points that caused the WG to not adopt the
        document?
 
Per the RAI area process for new work, this document has been reviewed in the DISPATCH WG. The DISPATCH WG does not progress any documents as WG documents.  The DISPATCH WG selects one the following actions for contributions to the WG that have been adequately reviewed and discussed:
- None in the case of work items for which there is inadequate interest or feedback indicates that the work should not be progressed (e.g., it's a bad idea or not within scope for RAI area or IETF)
- New work item in currently chartered WG
- New WG or mini-WG in the case where the deliverable is likely a single document - e.g. a new SIP header
- IETF official BoF - typically for work items that are of broad interest and potential impact within the RAI area and across areas.
- Individual/AD sponsored - for items limited in scope and applicability

Individual/AD sponsored was the consensus of the DISPATCH WG for this document and the AD(s) agreed to progress the document.  There was no controversy around this decision. 

        Document Quality
        Are there existing implementations of the protocol? Have a
        significant number of vendors indicated their plan to
        implement the specification? Are there any reviewers that
        merit special mention as having done a thorough review,
        e.g., one that resulted in important changes or a
        conclusion that the document had no substantive issues? If
        there was a MIB Doctor, Media Type or other expert review,
        what was its course (briefly)? In the case of a Media Type
        review, on what date was the request posted?

This document is a dependency for the SIP Forum Fax over IP (FoIP) Task group.  While the use of fax is not widespread, there are key areas where it is still required (e.g., medical field).  There are vendors that are planning to implement this specification. 

        Personnel
        Who is the Document Shepherd? Who is the Responsible Area
        Director?

Mary Barnes (DISPATCH WG co-chair) is the Document Shepherd.  Gonzalo
Camarillo is the Responsible AD. 


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