Conference Focus Indicating CCMP Support
draft-yusef-dispatch-ccmp-indication-05

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Document Type Active Internet-Draft (individual)
Last updated 2013-09-27 (latest revision 2013-09-25)
Stream IETF
Intended RFC status Proposed Standard
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Document shepherd Alan Johnston
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Send notices to rifatyu@avaya.com, mary.ietf.barnes@gmail.com, draft-yusef-dispatch-ccmp-indication@tools.ietf.org, alan.johnston@mci.com
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INTERNET-DRAFT                                            R. Shekh-Yusef
Intended Status: Informational                                     Avaya
Expires: March 29, 2014                                        M. Barnes
                                                                 Polycom
                                                      September 25, 2013

                Conference Focus Indicating CCMP Support
                draft-yusef-dispatch-ccmp-indication-05

Abstract

   The Centralized Conferencing Manipulation Protocol document defines a
   way for a client to discover a conference control server that
   supports CCMP. However, it does not define a way for a client
   involved in a conference to determine if the conference focus
   supports CCMP. This information would allow a CCMP-enabled client
   that joins a conference using SIP to also register for the XCON
   conference event package and take advantage of CCMP operations on the
   conference.

   This document describes two mechanisms, depending upon the need of
   the UA, to address the above limitation. The first mechanism uses the
   Call-Info header, and the second mechanism defines a new value for
   the 'purpose' parameter in the 'service-uris' element in the SIP
   conferencing event package.

Status of this Memo

   This Internet-Draft is submitted to IETF in full conformance with the
   provisions of BCP 78 and BCP 79.

   Internet-Drafts are working documents of the Internet Engineering
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Copyright and License Notice

   Copyright (c) 2013 IETF Trust and the persons identified as the
   document authors. All rights reserved.

   This document is subject to BCP 78 and the IETF Trust's Legal
   Provisions Relating to IETF Documents
   (http://trustee.ietf.org/license-info) in effect on the date of
   publication of this document. Please review these documents
   carefully, as they describe your rights and restrictions with respect
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   include Simplified BSD License text as described in Section 4.e of
   the Trust Legal Provisions and are provided without warranty as
   described in the Simplified BSD License.

 

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Table of Contents

   1  Introduction  . . . . . . . . . . . . . . . . . . . . . . . . .  4
     1.1  Terminology . . . . . . . . . . . . . . . . . . . . . . . .  4
   2  Solutions . . . . . . . . . . . . . . . . . . . . . . . . . . .  5
     2.1 Call-Info  . . . . . . . . . . . . . . . . . . . . . . . . .  5
     2.2 Service URI purpose  . . . . . . . . . . . . . . . . . . . .  6
   3  Security Considerations . . . . . . . . . . . . . . . . . . . .  6
   4  IANA Considerations . . . . . . . . . . . . . . . . . . . . . .  7
     4.1 Call-Info Purpose Registration . . . . . . . . . . . . . . .  7
     4.2 URI Purpose Registration . . . . . . . . . . . . . . . . . .  7
   5  Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . .  8
   6  References  . . . . . . . . . . . . . . . . . . . . . . . . . .  8
     6.1  Normative References  . . . . . . . . . . . . . . . . . . .  8
   Appendix A. Other Approaches Considered  . . . . . . . . . . . . .  9
     A.1 Feature Tag  . . . . . . . . . . . . . . . . . . . . . . . .  9
     A.2 Conference URI purpose . . . . . . . . . . . . . . . . . . .  9
   Author's Addresses . . . . . . . . . . . . . . . . . . . . . . . . 10

 

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1  Introduction

   RFC 5239 [RFC5239] defines a framework for Centralized Conferencing,
   which allows participants to exchange media in a centralized unicast
   conference. The framework also outlines a set of conferencing
   protocols for building advanced conferencing applications.
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