Session Initiation Protocol Core (sipcore) ------------------------------------------ Charter Last Modified: 2011-08-18 Current Status: Active Working Group Chair(s): Adam Roach Paul Kyzivat Real-time Applications and Infrastructure Area Director(s): Gonzalo Camarillo Robert Sparks Real-time Applications and Infrastructure Area Advisor: Robert Sparks 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 5727, "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: Done INFO package framework to IESG (PS) Done Termination of early dialog prior to final response to IESG (PS) Done Invite Transaction Handling Correction to IESG (PS) Done Extension for use in etags in conditional notification to IESG (PS) Done SIP Events throttling mechanism to IESG (PS) Done Presence Scaling Requirements to IESG as Info Done Mechanism for indicating support for keep-alives (PS) Done Example security flows to IESG (Informational) Done Location Conveyance with SIP to IESG (PS) Jul 2011 Delivering request-URI and parameters to UAS via proxy to IESG (PS) Aug 2011 Error corrections and clarifications to RFC3265 to IESG (PS) Aug 2011 WGLC on requirements for a mechanism to indicate proxy capabilities to both endpoints and other proxies in the path of a REGISTER transaction or a dialog-forming transaction. Internet-Drafts: Posted Revised I-D Title ------ ------- -------------------------------------------- May 2009 Aug 2011 Session Initiation Protocol (SIP) Event Notification Extension for Notification Rate Control Jul 2009 Oct 2011 SIP-Specific Event Notification Feb 2010 Oct 2011 An Extension to the Session Initiation Protocol (SIP) for Request History Information Jul 2011 Dec 2011 Requirements for indication of features supported by a SIP proxy Request For Comments: RFC Stat Published Title ------- -- ----------- ------------------------------------ RFC5839 PS May 2010 An Extension to Session Initiation Protocol (SIP) Events for Conditional Event Notification RFC6026 PS Sep 2010 Correct Transaction Handling for 2xx Responses to Session Initiation Protocol (SIP) INVITE Requests RFC6086 PS Jan 2011 Session Initiation Protocol (SIP) INFO Method and Package Framework RFC6141 PS Mar 2011 Re-INVITE and Target-Refresh Request Handling in the Session Initiation Protocol (SIP) RFC6216 I Apr 2011 Example Call Flows Using Session Initiation Protocol (SIP) Security Mechanisms RFC6223 PS Apr 2011 Indication of Support for Keep-Alive RFC6228 PS May 2011 Session Initiation Protocol (SIP) Response Code for Indication of Terminated Dialog RFC6442 PS Dec 2011 Location Conveyance for the Session Initiation Protocol