Session Initiation Proposal Investigation (sipping)
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 Charter
 Last Modified: 2006-03-24

 Current Status: Active Working Group

 Chair(s):
     Mary Barnes  <mary.barnes@nortel.com>
     Gonzalo Camarillo  <gonzalo.camarillo@ericsson.com>

 Real-time Applications and Infrastructure Area Director(s):
     Jon Peterson  <jon.peterson@neustar.biz>
     Cullen Jennings  <fluffy@cisco.com>

 Real-time Applications and Infrastructure Area Advisor:
     Jon Peterson  <jon.peterson@neustar.biz>

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

 Mailing Lists: 
     General Discussion:sipping@ietf.org
     To Subscribe:      sipping-request@ietf.org
         In Body:       (un)subscribe
     Archive:           http://www.ietf.org/mail-archive/web/sipping/index.html

Description of Working Group:

The Session Initiation Protocol Project INvestiGation (SIPPING)
working group is chartered to document the use of SIP for several
applications related to telephony and multimedia, and to develop
requirements for extensions to SIP needed for those applications.
Such requirements will be referred to the SIP working group for
development of any new SIP method, header, or option-tag as described
in Change Policy for SIP (RFC 3467).

Guiding principles for the performance of SIPPING's work will include:

1. Documenting the requirements of specific chartered tasks.

2. Documenting the usage of SIP to solve real problems that need
to be solved in a standardized way. Examples of important
topics identified are the session policy architecture, allowing
network entities to convey policy into an User Agent's
activity; requirements analysis for session border
controllers to determine how best such devices can
operate with SIP usage; guidance on IPv4-IPv6
co-existence support by SIP and SIP-supported media; and 
inclusion of real-time text conversation (ToIP), service 
invocations benefitting hearing and speech impaired users, 
and other SIP equal access services as requirements are proposed. 

3. Looking for commonalities among the chartered tasks and ongoing
SIP-related development, as commonalities may indicate for general,
reusable functionality in SIP.

4. Describing the requirements for any extension determined to pass
there hurdles, and handing the development task to the SIP WG.

5. Developing procedures and requirements for configuration and
delivery of SIP User Profiles

Besides performing needed specification of several applications
of SIP, SIPPING can be seen as also working out use cases that
clarify the role of SIP in the Internet, and help to ensure that
Occam's razor is appropriately applied to SIP usage.

The security of all the deliverables will be of special importance.
The technology for security will be keyed from the SIP Security
specification within RFC 3261, and additional SIP specifications
as they apply.

 Goals and Milestones:

   Done         Submit Internet-Draft on SIP-Telephony Framework to IESG for 
                consideration as a BCP 

   Done         Submit Internet-Draft on ISUP-SIP Mapping to IESG for 
                consideration as Proposed Standard 

   Done         Submit Internet-Draft on Requirements for use of SIP to support 
                telephony for the Hearing-Impaired to IESG for consideration as 
                an Informational RFC 

   Done         Submit SIP 3rd party call control to IESG for consideration as 
                BCP 

   Done         Submit Internet-Draft on 3G Requirements to IESG for 
                consideration as an Informational RFC 

   Done         Submit Internet-Draft on Mapping ISUP Overlap Signaling to SIP 
                to IESG for consideration as a Proposed Standard 

   Done         Submit Internet-Draft on Usage Guideline for Events 
                (Subscribe-Notify) to IESG for consideration as an 
                Informational RFC 

   Done         Submit Internet-Drafts Basic and PSTN Call Flows to IESG fro 
                consideration as BCPs 

   Done         Requirements for Content Indirection in SIP 

   Done         Submit Message Waiting SIP event package to IESG for 
                consideration as PS 

   Done         Using ENUM with SIP Applications to IESG for consideration as 
                an Informational RFC 

   Done         Requirements for Reuse of Connections in SIP 

   Done         Submit Internet-Draft on T.38 Fax Call Flows to IESG for 
                consideration as a BCP 

   Done         Requirements for SIP Request History 

   Done         Submit Internet-Draft on Requirements for AAA Application in 
                SIP Telephony to IESG for consideration as an Informational RFC 

   Done         Sip Interworking with QSIG 

   Done         3pcc Transcoding to IESG as Info 

   Done         KPML to IESG as PS 

   Done         Conferencing Requirements to IESG as Info 

   Done         Conferencing Framework to IESG as Info 

   Done         Conferencing Call Control-Conferencing to IESG as BCP 

   Done         End-to-Middle Security Requirements to IESG as Info 

   Done         Configuration Framework to the IESG as a PS 

   Done         Revise Charter 

   Nov 2005       Submit I-D on Subscriptions to Ad-Hoc Resource Lists to the 
                IESG as PS 

   Nov 2005       Submit I-D on Multiple REFER to the IESG as PS 

   Nov 2005       Submit I-D on Ad-Hoc Conferencing using URI lists to the IESG 
                as PS 

   Nov 2005       Submit URI List Transport Mechanism to the IESG as PS 

   Nov 2005       Framework for Consent-based Communications in SIP to IESG 

   Nov 2005       Session Policy Requirements to IESG as Info 

   Done         Requirements for Consent-based Communications in SIP to IESG as 
                Info 

   Dec 2005       Service Quality Reporting to IESG as PS 

   Done         Requirements on Trait-Based Authorization to IESG as Info 

   Done         Transcoding Framework to IESG as Info 

   Done         Transcoding with Conf Bridge to IESG as Info 

   Jan 2006       Session Independent Policy Mechanism to the IESG as PS 

   Jan 2006       Session Specific Policy Mechanism to the IESG as PS 

   Jan 2006       SIP Security Flows to IESG as Info 

   Feb 2006       SIP Service Examples to IESG as Info 

   Feb 2006       IPv6 Transition in SIP to the IESG as Info 

   Mar 2006       Revise Charter 


 Internet-Drafts:

Posted Revised         I-D Title   <Filename>
------ ------- --------------------------------------------
Jun 2002 Jun 2006   <draft-ietf-sipping-nat-scenarios-05.txt>
                Best Current Practices for NAT Traversal for SIP 

Mar 2003 Oct 2006   <draft-ietf-sipping-config-framework-09.txt>
                A Framework for Session Initiation Protocol User Agent Profile 
                Delivery 

Sep 2003 Jul 2006   <draft-ietf-sipping-kpml-08.txt>
                A Session Initiation Protocol (SIP) Event Package for Key Press 
                Stimulus (KPML) 

Oct 2003 Jul 2005   <draft-ietf-sipping-app-interaction-framework-05.txt>
                A Framework for Application Interaction in the Session 
                Initiation Protocol (SIP) 

Feb 2004 May 2006   <draft-ietf-sipping-transc-framework-04.txt>
                Framework for Transcoding with the Session Initiation Protocol 
                (SIP) 

Jul 2004 Sep 2006   <draft-ietf-sipping-uri-services-06.txt>
                Framework and Security Considerations for Session Initiation 
                Protocol (SIP) Uniform Resource Identifier (URI)-List Services 

Oct 2004 Jun 2006   <draft-ietf-sipping-consent-framework-05.txt>
                A Framework for Consent-Based Communications in the Session 
                Initiation Protocol (SIP) 

Oct 2004 Aug 2006   <draft-ietf-sipping-toip-07.txt>
                Framework for real-time text over IP using the Session 
                Initiation Protocol (SIP) 

Jun 2005 Jun 2006   <draft-ietf-sipping-transc-conf-03.txt>
                The Session Initiation Protocol (SIP) Conference Bridge 
                Transcoding Model 

Jul 2005 Sep 2006   <draft-ietf-sipping-v6-transition-04.txt>
                IPv6 Transition in the Session Initiation Protocol (SIP) 

Oct 2005 May 2006   <draft-ietf-sipping-gruu-reg-event-06.txt>
                Registration Event Package Extension for Session Initiation 
                Protocol (SIP) Globally Routable User Agent URIs (GRUU) 

Nov 2005 Aug 2006   <draft-ietf-sipping-dialogusage-03.txt>
                Multiple Dialog Usages in the Session Initiation Protocol 

Dec 2005 Feb 2006   <draft-ietf-sipping-rtcp-summary-01.txt>
                Session Initiation Protocol Package for Voice Quality Reporting 
                Event 

Feb 2006 Oct 2006   <draft-ietf-sipping-capacity-attribute-02.txt>
                Extensible Markup Language (XML) Format Extension for 
                Representing Copy Control Attributes in Resource Lists 

Apr 2006 Jun 2006   <draft-ietf-sipping-session-policy-framework-01.txt>
                A Framework for Session Initiation Protocol (SIP) Session 
                Policies 

Apr 2006 Jun 2006   <draft-ietf-sipping-policy-package-01.txt>
                A Session Initiation Protocol (SIP) Event Package for 
                Session-Specific Session Policies 

May 2006 May 2006   <draft-ietf-sipping-xcap-config-00.txt>
                Extensions to the Session Initiation Protocol (SIP) User Agent 
                Profile Delivery Change Notification Event Package for the 
                Extensible Markup Language Language Configuration Access 
                Protocol (XCAP) 

Sep 2006 Sep 2006   <draft-ietf-sipping-pending-additions-00.txt>
                The Session Initiation Protocol (SIP) Pending Additions Event 
                Package 

Sep 2006 Sep 2006   <draft-ietf-sipping-consent-format-00.txt>
                A Document Format for Requesting Consent 

 Request For Comments:

  RFC   Stat Published     Title
------- -- ----------- ------------------------------------
RFC3351 I    Aug 2002    User Requirements for the Session Initiation Protocol 
                       (SIP) in Support of Deaf, Hard of Hearing and 
                       Speech-impaired individuals 

RFC3372BCP  Sep 2002    Session Initiation Protocol (SIP) for Telephones 
                       (SIP-T): Context and Architectures 

RFC3324 I    Dec 2002    Short Term Requirements for Network Asserted Identity 

RFC3398 PS   Dec 2002    Integrated Services Digital Network (ISDN) User Part 
                       (ISUP) to Session Initiation Protocol (SIP) Mapping 

RFC3485 PS   Mar 2003    The Session Initiation Protocol (SIP) and Session 
                       Description Protocol (SDP) Static Dictionary for 
                       Signaling Compression (SigComp) 

RFC3578 PS   Aug 2003    Mapping of of Integrated Services Digital Network (ISUP) 
                       Overlap Signalling to the Session Initiation Protocol 
                       (SIP) 

RFC3666BCP  Jan 2004    Session Initiation Protocol PSTN Call Flows 

RFC3665BCP  Jan 2004    Session Initiation Protocol Basic Call Flow Examples 

RFC3702 I    Feb 2004    Authentication, Authorization and Accounting 
                       Requirements for the Session Initiation Protocol 

RFC3680Standard  Apr 2004    A Session Initiation Protocol (SIP) Event Package for 
                       Registrations 

RFC3725BCP  Apr 2004    Best Current Practices for Third Party Call Control in 
                       the Session Initiation Protocol 

RFC3824 I    Jun 2004    Using E.164 numbers with the Session Initiation Protocol 
                       (SIP) 

RFC3842Standard  Aug 2004    A Message Summary and Message Waiting Indication Event 
                       Package for the Session Initiation Protocol (SIP) 

RFC3959Standard  Jan 2005    The Early Session Disposition Type for the Session 
                       Initiation Protocol (SIP) 

RFC3960 I    Jan 2005    Early Media and Ringing Tone Generation in the Session 
                       Initiation Protocol (SIP) 

RFC4083 I    May 2005    Input 3rd-Generation Partnership Project (3GPP) Release 
                       5 requirements on the Session Initiation Protocol (SIP) 

RFC4117 I    Jul 2005    Transcoding Services Invocation in the Session 
                       Initiation Protocol (SIP) Using Third Party Call Control 
                       (3pcc) 

RFC4189 I    Oct 2005    Requirements for End-to-Middle Security for the Session 
                       Initiation Protocol (SIP) 

RFC4235Standard  Dec 2005    An INVITE-Inititiated Dialog Event Package for the 
                       Session Initiation Protocol (SIP) 

RFC4245 I    Dec 2005    High-Level Requirements for Tightly Coupled SIP 
                       Conferencing 

RFC4353 I    Feb 2006    A Framework for Conferencing with the Session Initiation 
                       Protocol (SIP) 

RFC4411 PS   Feb 2006    Extending the Session Initiation Protocol (SIP) Reason 
                       Header for Preemption Events 

RFC4453 I    Apr 2006    Requirements for Consent-Based Communications in the 
                       Session Initiation Protocol (SIP) 

RFC4497BCP  May 2006    Interworking between the Session Initiation Protocol 
                       (SIP) and QSIG 

RFC4475 I    May 2006    Session Initiation Protocol (SIP) Torture Test Messages 

RFC4569 I    Jul 2006    Internet Assigned Number Authority (IANA) Registration 
                       of the Message Media Feature Tag 

RFC4596 I    Jul 2006    Guidelines for Usage of the Session Initiation Protocol 
                       (SIP) Caller Preferences Extension 

RFC4484 I    Aug 2006    Trait-based Authorization Requirements for the Session 
                       Initiation Protocol (SIP) 

RFC4575 PS   Aug 2006    A Session Initiation Protocol (SIP) Event Package for 
                       Conference State 

RFC4579BCP  Aug 2006    Session Initiation Protocol (SIP) Call Control - 
                       Conferencing for User Agents