Session Initiation Proposal Investigation (sipping) --------------------------------------------------- Charter Last Modified: 2006-03-24 Current Status: Active Working Group Chair(s): Mary Barnes Gonzalo Camarillo Real-time Applications and Infrastructure Area Director(s): Jon Peterson Cullen Jennings Real-time Applications and Infrastructure Area Advisor: Jon Peterson Secretary(ies): Oscar Novo 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 ------ ------- -------------------------------------------- Jun 2002 Jun 2006 Best Current Practices for NAT Traversal for SIP Mar 2003 Oct 2006 A Framework for Session Initiation Protocol User Agent Profile Delivery Sep 2003 Jul 2006 A Session Initiation Protocol (SIP) Event Package for Key Press Stimulus (KPML) Oct 2003 Jul 2005 A Framework for Application Interaction in the Session Initiation Protocol (SIP) Feb 2004 May 2006 Framework for Transcoding with the Session Initiation Protocol (SIP) Jul 2004 Sep 2006 Framework and Security Considerations for Session Initiation Protocol (SIP) Uniform Resource Identifier (URI)-List Services Oct 2004 Jun 2006 A Framework for Consent-Based Communications in the Session Initiation Protocol (SIP) Oct 2004 Aug 2006 Framework for real-time text over IP using the Session Initiation Protocol (SIP) Jun 2005 Jun 2006 The Session Initiation Protocol (SIP) Conference Bridge Transcoding Model Jul 2005 Sep 2006 IPv6 Transition in the Session Initiation Protocol (SIP) Oct 2005 May 2006 Registration Event Package Extension for Session Initiation Protocol (SIP) Globally Routable User Agent URIs (GRUU) Nov 2005 Aug 2006 Multiple Dialog Usages in the Session Initiation Protocol Dec 2005 Feb 2006 Session Initiation Protocol Package for Voice Quality Reporting Event Feb 2006 Oct 2006 Extensible Markup Language (XML) Format Extension for Representing Copy Control Attributes in Resource Lists Apr 2006 Jun 2006 A Framework for Session Initiation Protocol (SIP) Session Policies Apr 2006 Jun 2006 A Session Initiation Protocol (SIP) Event Package for Session-Specific Session Policies May 2006 May 2006 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 The Session Initiation Protocol (SIP) Pending Additions Event Package Sep 2006 Sep 2006 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