Session Initiation Protocol Core (sipcore)
------------------------------------------

 Charter
 Last Modified: 2009-09-09

 Current Status: Active Working Group

 Chair(s):
     Gonzalo Camarillo  <gonzalo.camarillo@ericsson.com>
     Adam Roach  <adam@nostrum.com>

 Real-time Applications and Infrastructure Area Director(s):
     Robert Sparks  <rjsparks@nostrum.com>
     Cullen Jennings  <fluffy@cisco.com>

 Real-time Applications and Infrastructure Area Advisor:
     Robert Sparks  <rjsparks@nostrum.com>

 Secretary(ies):
     Oscar Novo  <Oscar.Novo@ericsson.com>

 Mailing Lists: 
     General Discussion:sipcore@ietf.org
     To Subscribe:      https://www.ietf.org/mailman/listinfo/sipcore
     Archive:           http://www.ietf.org/mail-archive/web/sipcore/

Description of Working Group:

The Session Initiation Protocol Core (SIPCore) working group is
chartered to maintain and continue the development of the core SIP
specifications, currently defined as proposed standard RFCs 3261, 3262,
3263, 3264, and 3265.

The SIPCore working group will concentrate on specifications that
update or replace the core SIP specifications. In this context,
"update" means replacing or modifying protocol elements in the above
listed RFCs in ways that would affect most or all implementations of
those RFCs alone. Extensions to SIP that add new functionality that
would not be required of all implementations will be done outside of
this WG. The process and requirements for such extensions are
documented in RFC 3427bis, "Change Process for the Session Initiation
Protocol".

Throughout its work, the group will strive to maintain the basic
model and architecture defined by SIP. In particular:

1. Services and features are provided end-to-end whenever possible.

2. Reuse of existing Internet protocols and architectures and
integrating with other Internet applications is crucial.

The primary source of change requirements will be a) interoperability
problems that stem from ambiguous, or under-defined specification,
and b) requirements from other working groups in the RAI Area.

Although in general the WG will not work on extensions to SIP, it
may take on some previous work items from the SIP working group
to allow for a smooth transition. The adoption of new items requires
explicit agreement from the AD or rechartering.

 Goals and Milestones:

   Jul 2009       Delivering request-URI and parameters to UAS via proxy to IESG 
                (PS) 

   Jul 2009       INFO package framework to IESG (PS) 

   Aug 2009       Termination of early dialog prior to final response to IESG 
                (PS) 

   Aug 2009       Location Conveyance with SIP to IESG (PS) 

   Oct 2009       Example security flows to IESG (Informational) 

   Oct 2009       Invite Transaction Handling Correction to IESG (PS) 

   Oct 2009       Extension for use in etags in conditional notification toIESG 
                (PS) 

   Dec 2009       SIP Events throttling mechanism to IESG (PS) 

   Dec 2009       Mechanism for indicating support for keep-alives (PS) 

   Dec 2009       Error corrections and clarifications to RFC3265 to IESG (PS) 

   Jan 2010       Presence Scaling Requirements to IESG as Info 


 Internet-Drafts:

Posted Revised         I-D Title   <Filename>
------ ------- --------------------------------------------
Apr 2009 Sep 2009   <draft-ietf-sipcore-presence-scaling-requirements-02.txt>
                Scaling Requirements for Presence in SIP/SIMPLE 

Apr 2009 Jan 2010   <draft-ietf-sipcore-subnot-etags-04.txt>
                An Extension to Session Initiation Protocol (SIP) Events for 
                Conditional Event Notification 

Apr 2009 Dec 2009   <draft-ietf-sipcore-199-02.txt>
                Response Code for Indication of Terminated Dialog 

May 2009 Dec 2009   <draft-ietf-sipcore-keep-01.txt>
                Indication of support for keep-alive 

May 2009 Jan 2010   <draft-ietf-sipcore-sec-flows-02.txt>
                Example call flows using Session Initiation Protocol (SIP) 
                security mechanisms 

May 2009 Jan 2010   <draft-ietf-sipcore-event-rate-control-02.txt>
                Session Initiation Protocol (SIP) Event Notification Extension 
                for Notification Rate Control 

Jul 2009 Feb 2010   <draft-ietf-sipcore-info-events-07.txt>
                Session Initiation Protocol (SIP) INFO Method and Package 
                Framework 

Sep 2009 Sep 2009   <draft-ietf-sipcore-invfix-00.txt>
                Correct transaction handling for 200 responses to Session 
                Initiation Protocol INVITE requests 

Dec 2009 Jan 2010   <draft-ietf-sipcore-reinvite-01.txt>
                Re-INVITE and Target-refresh Request Handling in the Session 
                Initiation Protocol (SIP) 

Feb 2010 Feb 2010   <draft-ietf-sipcore-rfc4244bis-00.txt>
                An Extension to the Session Initiation Protocol (SIP) for 
                Request History Information 

 Request For Comments:

  None to date.