News -- Standardization and Publication Actions

December 21, 2011: RFC 6451 ( Framework for Emergency Calling Using Internet Multimedia) published
December 8, 2011: RFC 6451 (Location-to-Service Translation (LoST) Protocol Extensions) published
December 2, 2011: RFC 6442 (Location Conveyance for the Session Initiation Protocol) published
August 31, 2011: RFC 6357 (Design Considerations for Session Initiation Protocol (SIP) Overload Control) published
August 19, 2011: RFC 6337 (Session Initiation Protocol (SIP) Usage of the Offer/Answer Model) published
August 12, 2011: RFC 6337 (Use Cases and Requirements for SIP-Based Media Recording (SIPREC)) published
July 23, 2011: RFC 6280 (An Architecture for Location and Location Privacy in Internet Applications) published
July 29, 2011: RFC 6225 ( Dynamic Host Configuration Protocol Options for Coordinate-Based Location Configuration Information) published
June 28, 2011: RFC 6271 (Requirements for SIP-Based Session Peering) published
May 25, 2011: RFC 6231 ( An Interactive Voice Response (IVR) Control Package for the Media Control Channel Framework) published
May 25, 2011: RFC 6230 (Media Control Channel Framework) published
April 5, 2011: RFC 6193 (Media Description for the Internet Key Exchange Protocol (IKE) in the Session Description Protocol (SDP)) published
April 5, 2011: RFC 6216 (Example Call Flows Using Session Initiation Protocol (SIP) Security Mechanisms ) published
March 11, 2011: RFC 6155 (Use of Device Identity in HTTP-Enabled Location Delivery (HELD) ) published
March 3, 2011: RFC 6140 (Registration for Multiple Phone Numbers in the Session Initiation Protocol (SIP)) published
March 3, 2011: RFC 6141 ( Re-INVITE and Target-Refresh Request Handling in the Session Initiation Protocol (SIP)) published
March 3, 2011: RFC 6080 (A Framework for Session Initiation Protocol User Agent Profile Delivery) published
January 20, 2011: RFC 6076 (Basic Telephony SIP End-to-End Performance Metrics) published
January 18, 2011: RFC 6064 (SDP and RTSP Extensions Defined for 3GPP Packet-Switched Streaming Service and Multimedia Broadcast/Multicast Service) published
January 14, 2011: RFC 6086 ( Session Initiation Protocol (SIP) INFO Method and Package Framework) published
November 30, 2010: RFC 6035 (Session Initiation Protocol Event Package for Voice Quality Reporting) published
October 29, 2010: RFC 6044 (Mapping and Interworking of Diversion Information between Diversion and History-Info Headers in the Session Initiation Protocol (SIP)) published
October 29, 2010: RFC 5989 (A SIP Event Package for Subscribing to Changes to an HTTP Resource) published
October 29, 2011: RFC 6011 ( Session Initiation Protocol (SIP) User Agent Configuration) published
September 30, 2010: RFC 6026 (Correct Transaction Handling for 2xx Responses to Session Initiation Protocol (SIP) INVITE Requests) published
September 21, 2010: RFC 4756 (Forward Error Correction Grouping Semantics in the Session Description Protocol) published
September 14, 2010: RFC 5947 (Requirements for Multiple Address of Record (AOR) Reachability Information in the Session Initiation Protocol (SIP)) published
September 14, 2010: RFC 5939 (Session Description Protocol (SDP) Capability Negotiation) published
September 13, 2010: RFC 5962 (Dynamic Extensions to the Presence Information Data Format Location Object (PIDF-LO) ) published
June 23, 2010: RFC 5923 (Connection Reuse in the Session Initiation Protocol (SIP)) published
June 7, 2010: RFC 5870 (A Uniform Resource Identifier for Geographic Locations ('geo' URI)) published
May 26, 2010: RFC 5922 (Domain Certificates in the Session Initiation Protocol (SIP)) published
May 26, 2010: RFC 5850 (A Call Control and Multi-Party Usage Framework for the Session Initiation Protocol (SIP)) published
May 19, 2010: RFC 5874 (An Extensible Markup Language (XML) Document Format for Indicating a Change in XML Configuration Access Protocol (XCAP) Resources) published
May 19, 2010: RFC 5875 (An Extensible Markup Language (XML) Configuration Access Protocol (XCAP) Diff Event Package) published
May 11, 2010: RFC 5808 (Requirements for a Location-by-Reference Mechanism) published
May 5, 2010: RFC 5839 (An Extension to Session Initiation Protocol (SIP) Events for Conditional Event Notification) published
April 29, 2010: RFC 5769 (Test Vectors for Session Traversal Utilities for NAT (STUN)) published
April 29, 2010: RFC 5768 (Indicating Support for Interactive Connectivity Establishment (ICE) in the Session Initiation Protocol (SIP)) published
April 29, 2010: RFC 5853 ( Requirements from Session Initiation Protocol (SIP) Session Border Control (SBC) Deployments) published
April 29, 2010: RFC 5245 ( Interactive Connectivity Establishment (ICE): A Protocol for Network Address Translator (NAT) Traversal for Offer/Answer Protocols) published
April 26, 2010: RFC 5876 (Updates to Asserted Identity in the Session Initiation Protocol (SIP)) published
March 10, 2010: RFC 5727 (Change Process for the Session Initiation Protocol (SIP) and the Real-time Applications and Infrastructure Area) published
March 10, 2010: RFC 5687 (GEOPRIV Layer 7 Location Configuration Protocol: Problem Statement and Requirements) published
March 3, 2010: RFC 5774 (Considerations for Civic Addresses in the Presence Information Data Format Location Object (PIDF-LO): Guidelines and IANA Registry Definition) published
February 8, 2010: RFC 5379 (Guidelines for Using the Privacy Mechanism for SIP) published
January 7, 2010: RFC 5688 (A Session Initiation Protocol (SIP) Media Feature Tag for MIME Application Subtypes) published
October 23, 2009: RFC 5658 (Addressing Record-Route Issues in the Session Initiation Protocol (SIP)) published
October 23, 2009: RFC 5631 (Session Initiation Protocol (SIP) Session Mobility) published
October 23, 2009: RFC 5630 (The Use of the SIPS URI Scheme in the Session Initiation Protocol (SIP)) published
October 23, 2009: RFC 5629 (A Framework for Application Interaction in the Session Initiation Protocol (SIP)) published
October 23, 2009: RFC 5628 (Registration Event Package Extension for Session Initiation Protocol (SIP) Globally Routable User Agent URIs (GRUUs)) published
September 23, 2009: RFC 5638 (Simple SIP Usage Scenario for Applications in the Endpoints ) published
September 10, 2009: RFC 5621 (Message Body Handling in the Session Initiation Protocol (SIP) ) published
September 3, 2009: RFC 5582 (Location-to-URL Mapping Architecture and Framework) published
June 30, 2009: RFC 5576 (Source-Specific Media Attributes in the Session Description Protocol (SDP)) published
June 26, 2009: RFC 5589 (Session Initiation Protocol (SIP) Call Control - Transfer) published
May 19, 2009: RFC 5552 (SIP Interface to VoiceXML Media Services ) published
May 5, 2009: RFC 5547 (A Session Description Protocol (SDP) Offer/Answer Mechanism to Enable File Transfer) published
April 6, 2009: RFC 5502 (The SIP P-Served-User Private-Header (P-Header) for the 3GPP IP Multimedia (IM) Core Network (CN) Subsystem) published
April 3, 2009: RFC 5509 (Internet Assigned Numbers Authority (IANA) Registration of Instant Messaging and Presence DNS SRV RRs for the Session Initiation Protocol (SIP)) published
March 24, 2009: RFC 5491 (GEOPRIV Presence Information Data Format Location Object (PIDF-LO) Usage Clarification, Considerations, and Recommendations) published
March 13, 2009: RFC 5503 (Private Session Initiation Protocol (SIP) Proxy-to-Proxy Extensions for Supporting the PacketCable Distributed Call Signaling Architecture) published
March 5, 2009: RFC 5478 (IANA Registration of New Session Initiation Protocol (SIP) Resource-Priority Namespaces) published
March 3, 2009: RFC 5432 (Quality of Service (QoS) Mechanism Selection in the Session Description Protocol (SDP)) published
February 18, 2009: RFC 5438 (Instant Message Disposition Notification (IMDN) ) published
February 4, 2009: RFC 5411 (A Hitchhiker's Guide to the Session Initiation Protocol (SIP)) published
December 12, 2008: RFC 5393 (Addressing an Amplification Vulnerability in Session Initiation Protocol (SIP) Forking Proxies) published
December 10, 2008: RFC 5407 (Example Call Flows of Race Conditions in the Session Initiation Protocol (SIP)) published
December 9, 2008: RFC 5390 (Requirements for Management of Overload in the Session Initiation Protocol) published
December 8, 2008: RFC 5318 (The Session Initiation Protocol (SIP) P-Refused-URI-List Private-Header (P-Header)) published
November 25, 2008: RFC 5391 (RTP Payload Format for ITU-T Recommendation G.711.1) published
November 25, 2008: RFC 5373 (Requesting Answering Modes for the Session Initiation Protocol (SIP) ) published
November 19, 2008: Quality of Service (QoS) Mechanism Selection in the Session Description Protocol (SDP) approved as a Proposed Standard
November 7, 2008: A Hitchhiker's Guide to the Session Initiation Protocol (SIP) approved as an Informational RFC
November 5, 2008: Addressing an Amplification Vulnerability in Session Initiation Protocol (SIP) Forking Proxies approved as an Informational RFC
October 31, 2008: Example calls flows of race conditions in the Session Initiation Protocol (SIP) approved as a BCP
October 31, 2008: The Session Initiation Protocol (SIP) P-Refused-URI-List Private-Header (P-Header) approved as an Informational RFC
October 30, 2008: RFC 5370 (The Session Initiation Protocol (SIP) Conference Bridge Transcoding Model) published
October 30, 2008: RFC 5369 (Framework for Transcoding with the Session Initiation Protocol (SIP)) published
October 30, 2008: RFC 5368 (Referring to Multiple Resources in the Session Initiation Protocol (SIP)) published
October 30, 2008: RFC 5367 (Subscriptions to Request-Contained Resource Lists in the Session Initiation Protocol (SIP)) published
October 30, 2008: RFC 5366 (Conference Establishment Using Request-Contained Lists in the Session Initiation Protocol (SIP) ) published
October 30, 2008: RFC 5365 (Multiple-Recipient MESSAGE Requests in the Session Initiation Protocol (SIP)) published
October 30, 2008: RFC 5364 (Extensible Markup Language (XML) Format Extension for Representing Copy Control Attributes in Resource Lists ) published
October 30, 2008: RFC 5363 (Framework and Security Considerations for Session Initiation Protocol (SIP) URI-List Services) published
October 30, 2008: RFC 5362 (The Session Initiation Protocol (SIP) Pending Additions Event Package) published
October 30, 2008: RFC 5361 (A Document Format for Requesting Consent) published
October 30, 2008: RFC 5360 (A Framework for Consent-Based Communications in the Session Initiation Protocol (SIP)) published
October 27, 2008: Requirements for Management of Overload in the Session Initiation Protocol approved as Proposed Standard
October 24, 2008: RFC 5359 (Session Initiation Protocol Service Examples) published
October 24, 2008: RFC 5389 (Session Traversal Utilities for NAT (STUN)) published
September 29, 2008: Indicating Support for Interactive Connectivity Establishment (ICE) in the Session Initiation Protocol (SIP) approved as Proposed Standard
September 17, 2008: Requesting Answering Modes for the Session Initiation Protocol (SIP) approved as Proposed Standard
September 15, 2008: Session Initiation Protocol Service Examples approved as a BCP
September 11, 2008: RFC 5244 (Presence and Instant Messaging Peering Use Cases) published
September 11, 2008: RFC 5264 (Publication of Partial Presence Information) published
September 11, 2008: RFC 5263 ( Session Initiation Protocol (SIP) Extension for Partial Notification of Presence Information) published
September 11, 2008: RFC 5262 (Presence Information Data Format (PIDF) Extension for Partial Presence) published
September 11, 2008: RFC 5261 (An Extensible Markup Language (XML) Patch Operations Framework Utilizing XML Path Language (XPath) Selectors) published
September 11, 2008: RFC 5196 (Session Initiation Protocol (SIP) User Agent Capability Extension to Presence Information Data Format (PIDF)) published
August 28, 2008: The Session Initiation Protocol (SIP) Pending Additions Event Package approved as Proposed Standard
August 28, 2008: A Document Format for Requesting Consent approved as Proposed Standard
August 5, 2008: RFC 5223 (Discovering Location-to-Service Translation (LoST) Servers Using the Dynamic Host Configuration Protocol (DHCP)) published
August 5, 2008: RFC 5222 (LoST: A Location-to-Service Translation Protocol) published
June 10, 2008: Session Initiation Protocol (SIP) extension for Partial Notification of Presence Information approved as Proposed Standard
June 10, 2008: LoST: A Location-to-Service Translation Protocol approved as Proposed Standard
June 3, 2008: A Dynamic Host Configuration Protocol (DHCP) based Location-to-Service Translation Protocol (LoST) Discovery Procedure approved as Proposed Standard
June 9, 2008: RFC 5239 (A Framework for Centralized Conferencing) published
June 3, 2008: RFC 5194 (Framework for Real-Time Text over IP Using the Session Initiation Protocol (SIP)) published
May 14, 2008: Session Initiation Protocol (SIP) User Agent Capability Extension to Presence Information Data Format (PIDF) approved as Proposed Standard
May 1, 2008: Framework for real-time text over IP using the Session Initiation Protocol (SIP) approved as Proposed Standard
March 7, 2008: RFC 5140 (A Telephony Gateway REgistration Protocol (TGREP)) published
February 22, 2008: RFC 5139 (Revised Civic Location Format for Presence Information Data Format Location Object (PIDF-LO)) published
February 8, 2008: RFC 5118 (Session Initiation Protocol (SIP) Torture Test Messages for Internet Protocol Version 6 (IPv6)) published
February 7, 2008: A Framework for Consent-based Communications in the Session Initiation Protocol (SIP) approved as Proposed Standard
January 28, 2008: Session Description Protocol (SDP) Attributes for OMA BCAST Service and Content Protection approved as Proposed Standard
January 4, 2008: RFC 5039 (The Session Initiation Protocol (SIP) and Spam) published
January 2, 2008: Revised Civic Location Format for PIDF-LO approved as Proposed Standard
January 2, 2008: Session Initiation Protocol (SIP) Session Mobility approved as Informational
December 17, 2007: RFC 5079 (Rejecting Anonymous Requests in the Session Initiation Protocol (SIP)) published
December 17, 2007: RFC 5025 (Presence Authorization Rules) published
December 12, 2007: RFC 5049 (Applying Signaling Compression (SigComp) to the Session Initiation Protocol (SIP)) published
November 19, 2007: Session Initiation Protocol (SIP) Torture Test Messages for Internet Protocol Version 6 (IPv6) approved as Informational
November 6, 2007: RFC 5057 (Multiple Dialog Usages in the Session Initiation Protocol) published
October 16, 2007: RFC 5027 (Security Preconditions for Session Description Protocol (SDP) Media Streams) published
October 15, 2007: Obtaining and Using Globally Routable User Agent (UA) URIs (GRUU) in the Session Initiation Protocol (SIP) approved as Proposed Standard
October 8, 2007: Rejecting Anonymous Requests in the Session Initiation Protocol (SIP) approved as Proposed Standard
August 24, 2007: RFC 4964 (The P-Answer-State Header Extension to the Session Initiation Protocol for the Open Mobile Alliance Push to Talk over Cellular) published
August 24, 2007: RFC 5002 ( The Session Initiation Protocol (SIP) P-Profile-Key Private Header (P-Header)) published
August 21, 2007: A Uniform Resource Name (URN) for Emergency and Other Well-Known Services approved as Proposed Standard.
August 21, 2007: Registration Event Package Extension for Session Initiation Protocol (SIP) Globally Routable User Agent URIs (GRUUs) approved as Proposed Standard.
August 21, 2007: The Session Initiation Protocol (SIP) and Spam approved as Informational RFC.
August 21, 2007: Presence Authorization Rules approved as Proposed Standard.
August 21, 2007: Security Preconditions for Session Description Protocol (SDP) Media Streams approved as Proposed Standard.
August 21, 2007: IPv6 Transition in the Session Initiation Protocol (SIP) approved as Proposed Standard.
July 27, 2007: RFC 4967 (Dial String Parameter for the Session Initiation Protocol Uniform Resource Identifier) published
June 25, 2007: Private Header (P-Header) Extension to the Session Initiation Protocol (SIP) for Authorization of Early Media approved as Informational RFC
June 25, 2007: The Session Initiation Protocol (SIP) P-Profile-Key Private Header (P-Header) approved as Informational RFC
June 20, 2007: RFC 4916 (Connected Identity in the Session Initiation Protocol (SIP)) published
May 23, 2007: RFC 4827 (An Extensible Markup Language (XML) Configuration Access Protocol (XCAP) Usage for Manipulating Presence Document Contents) published
May 23, 2007: RFC 4826 (Extensible Markup Language (XML) Formats for Representing Resource Lists) published
May 23, 2007: RFC 4825 (The Extensible Markup Language (XML) Configuration Access Protocol (XCAP)) published
April 30, 2007: RFC 4780 ( Management Information Base for the Session Initiation Protocol (SIP) ) published
March 12, 2007: Connected Identity in the Session Initiation Protocol (SIP) approved as Proposed Standard
January 25, 2007: Framework for Transcoding with the Session Initiation Protocol (SIP) approved
December 11, 2006: RFC 4759 (The ENUM Dip Indicator Parameter for the "tel" URI) published
November 28, 2006: RFC 4756 (Forward Error Correction Grouping Semantics in Session Description Protocol)
November 28, 2006: RFC 4740 (Diameter Session Initiation Protocol (SIP) Application)
November 22, 2006: RFC 4583 (Session Description Protocol (SDP) Format for Binary Floor Control Protocol (BFCP) Streams)
November 22, 2006: RFC 4582 (The Binary Floor Control Protocol (BFCP))
November 18, 2006: RFC 4776 (Dynamic Host Configuration Protocol (DHCPv4 and DHCPv6) Option for Civic Addresses Configuration Information)
November 14, 2006: RFC 4730 (A Session Initiation Protocol (SIP) Event Package for Key Press Stimulus (KPML))
October 30, 2006: The SDP (Session Description Protocol) Content Attribute approved as a Proposed Standard
September 26, 2006: RFC 4660 (Functional Description of Event Notification Filtering)
September 26, 2006: RFC 4661 (An Extensible Markup Language (XML)-Based Format for Event Notification Filtering )
August 31, 2006: RFC 4662 (A Session Initiation Protocol (SIP) Event Notification Extension for Resource Lists) published
August 31, 2006: RFC 4579 ( Session Initiation Protocol (SIP) Call Control - Conferencing for User Agents ) published
August 31, 2006: RFC 4575 (A Session Initiation Protocol (SIP) Event Package for Conference State) published
August 31, 2006: RFC 4574 (The Session Description Protocol (SDP) Label Attribute) published
August 31, 2006: RFC 4484 (Trait-Based Authorization Requirements for the Session Initiation Protocol (SIP)) published
August 31, 2006: RFC 4474 (Enhancements for Authenticated Identity Management in the Session Initiation Protocol (SIP)) published
August 28, 2006: Common Policy: A Document Format for Expressing Privacy Preferences approved as a Proposed Standard
August 21, 2006: The Session Initiation Protocol (SIP) Conference Bridge Transcoding Model approved as a Proposed Standard
July 25, 2006: RFC 4596 (Guidelines for Usage of the Session Initiation Protocol (SIP) Caller Preferences Extension ) published
July 19, 2006: RFC 4566 (SDP: Session Description Protocol) published
July 19, 2006: RFC 4567 (Key Management Extensions for Session Description Protocol (SDP) and Real Time Streaming Protocol (RTSP)) published
July 19, 2006: RFC 4568 (Session Description Protocol (SDP) Security Descriptions for Media Streams) published
July 19, 2006: RFC 4570 (Session Description Protocol (SDP) Source Filters) published
July 19, 2006: RFC 4572 ( Connection-Oriented Media Transport over the Transport Layer Security (TLS) Protocol in the Session Description Protocol (SDP)) published
July 3, 2006: RFC 4589 (Location Types Registry) published
July 3, 2006: RFC 4479 (A Data Model for Presence) published
July 3, 2006: RFC 4482 (CIPID: Contact Information for the Presence Information Data Format) published
July 3, 2006: RFC 4481 (Timed Presence Extensions to the Presence Information Data Format (PIDF) to Indicate Status Information for Past and Future Time Intervals) published
July 3, 2006: RFC 4480 (RPID: Rich Presence Extensions to the Presence Information Data Format (PIDF)) published
June 14, 2006: RFC 4538 (Request Authorization through Dialog Identification in the Session Initiation Protocol (SIP)) published
May 30, 2006: RFC 4473 (Requirements for Internet Media Guides (IMGs)) published
May 31, 2006: Diameter Session Initiation Protocol (SIP) Application approved as a Proposed Standard
May 30, 2006: RFC 4485 ( Guidelines for Authors of Extensions to the Session Initiation Protocol (SIP)) published
May 30, 2006: RFC 4483 ( A Mechanism for Content Indirection in Session Initiation Protocol (SIP) Messages ) published
May 26, 2006: RFC 4508 (Conveying Feature Tags with the Session Initiation Protocol (SIP) REFER Method) published
May 26, 2006: Location Types Registry approved as a Proposed Standard
May 24, 2006: RFC 4504 (SIP Telephony Device Requirements and Configuration) published
May 19, 2006: RFC 4488 ( Suppression of Session Initiation Protocol (SIP) REFER Method Implicit Subscription) published
May 19, 2006: RFC 4475 ( Session Initiation Protocol (SIP) Torture Test Messages) published
May 16, 2006: RFC 4497 (Interworking between the Session Initiation Protocol (SIP) and QSIG) published
April 11, 2006: RFC 4457 (The Session Initiation Protocol (SIP) P-User-Database Private-Header (P-Header)) published
April 7, 2006: RFC 4458 (Session Initiation Protocol (SIP) URIs for Applications such as Voicemail and Interactive Voice Response (IVR) ) published
April 7, 2006: RFC 4453 (Requirements for Consent-Based Communications in the Session Initiation Protocol (SIP)) published
March 8, 2006: Connection-Oriented Media Transport over the Transport Layer Security (TLS) Protocol in the Session Description Protocol (SDP) approved as a Proposed Standard
March 6, 2006: Conveying Feature Tags with Session Initiation Protocol REFER Method approved as a Proposed Standard
March 6, 2006: Request Authorization through Dialog Identification in the Session Initiation Protocol (SIP) approved as a Proposed Standard
February 27, 2006: RFC 4411 (Extending the Session Initiation Protocol (SIP) Reason Header for Preemption Events) published
February 27, 2006: RFC 4412 (Communications Resource Priority for the Session Initiation Protocol (SIP) Framework for Conferencing with the Session Initiation Protocol) published
February 23, 2006: Trait-based Authorization Requirements for the Session Initiation Protocol (SIP) approved as Informational RFC
February 22, 2006: Interworking between SIP and QSIG approved as BCP
February 22, 2006: Suppression of Session Initiation Protocol REFER Method Implicit Subscription approved as a Proposed Standard
February 14, 2006: SDP: Session Description Protocol approved as a Proposed Standard
February 10, 2006: RFC 4353 ( A Framework for Conferencing with the Session Initiation Protocol (SIP)) published
February 3, 2006: The Session Initiation Protocol (SIP) P-User-Database Private-Header (P-Header) approved as an Informational RFC
January 31, 2006: A Data Model for Presence approved as a Proposed Standard
January 25, 2006: SIP Telephony Device Requirements and Configuration approved as an Informational RFC
January 25, 2006: Session Initiation Protocol (SIP) URIs for Applications such as Voicemail and Interactive Voice Response (IVR) approved as an Informational RFC
January 25, 2006: Requirements for Consent-Based Communications in the Session Initiation Protocol (SIP) approved as an Informational RFC
January 18, 2006: RFC 4320 ( Actions Addressing Identified Issues with the Session Initiation Protocol's (SIP) Non-INVITE Transaction) published
January 18, 2006: RFC 4321 ( Problems Identified Associated with the Session Initiation Protocol's (SIP) Non-INVITE Transaction) published
January 18, 2006: RFC 4354 (A Session Initiation Protocol (SIP) Event Package and Data Format for Various Settings in Support for the Push-to-Talk over Cellular (PoC) Service) published
December 23, 2005: CIPID: Contact Information in Presence Information Data Format approved as a Proposed Standard
December 23, 2005: RPID: Rich Presence Extensions to the Presence Information Data Format (PIDF) approved as a Proposed Standard
December 23, 2005: Timed Presence Extensions to the Presence Information Data Format (PIDF) to Indicate Status Information for Past and Future Time Intervals approved as a Proposed Standard
December 20, 2005: Session Description Protocol (SDP) Format for Binary Floor Control Protocol (BFCP) Streams approved as a Proposed Standard
December 20, 2005: The Binary Floor Control Protocol (BFCP) approved as a Proposed Standard
December 12, 2005: RFC 4240 (Basic Network Media Services with SIP) published
November 30, 2005: RFC 4235 (An INVITE-Initiated Dialog Event Package for the Session Initiation Protocol (SIP)) published
November 30, 2005: RFC 4245 (High-Level Requirements for Tightly Coupled SIP Conferencing) published
November 22, 2005: RFC 4244 (An Extension to the Session Initiation Protocol (SIP) for Request History Information) published
November 17, 2005: Session Initiation Protocol Torture Test Messages approved as Informational RFC
October 31, 2005: Requirements for Floor Control Protocol approved as Informational RFC
October 19, 2005: A Session Initiation Protocol (SIP) Event Notification Extension for Resource Lists approved as a Proposed Standard
October 18, 2005: Conferencing Scenarios as an Informational RFC
October 18, 2005: Internet Assigned Number Authority (IANA) Registration of the Message Media Feature Tag as an Informational RFC
October 17, 2005: A Framework for Application Interaction in the Session Initiation Protocol (SIP) as a Proposed Standard
October 4, 2005: Guidelines for Usage of the Session Initiation Protocol (SIP) Caller Preferences Extension as an Informational RFC
October 7, 2005: RFC 4189 (Requirements for End-to-Middle Security for the Session Initiation Protocol (SIP)) published
October 4, 2005: RFC 4168 (The Stream Control Transmission Protocol (SCTP) as a Transport for the Session Initiation Protocol (SIP) ) published
October 4, 2005: Session Description Protocol (SDP) Source Filters approved as Proposed Standard
October 3, 2005: Extending the Session Initiation Protocol Reason Header for Preemption Events and Communications Resource Priority for the Session Initiation Protocol (SIP) approved as Proposed Standards
September 28, 2005: A Session Initiation Protocol (SIP) Event Package and Data Format for Various Settings in Support for the Push-to-talk Over Cellular (PoC) Service approved as an Informational RFC.
September 19, 2005: RFC 4145 (TCP-Based Media Transport in the Session Description Protocol (SDP)) published
September 14, 2005: Session Description Protocol Security Descriptions for Media Streams as a Proposed Standard
August 2, 2005: A Framework for Conferencing with the Session Initiation Protocol as an Informational RFC
August 2, 2005: A Session Initiation Protocol (SIP) Event Package for Conference State approved as Proposed Standard
July 25, 2005: Session Description Protocol Offer/Answer Examples approved as Informational
July 7, 2005: RFC 4079 (A Presence Architecture for the Distribution of GEOPRIV Location Objects) published
July 7, 2005: RFC 4123 (Session Initiation Protocol (SIP)-H.323 Interworking Requirements) published
June 29, 2005: RFC 4117 (Transcoding Services Invocation in the Session Initiation Protocol (SIP) Using Third Party Call Control (3pcc)) published
June 27, 2005: Session Initiation Protocol Call Control - Conferencing for User Agents approved as a BCP
June 21, 2005: The Extensible Markup Language (XML) Configuration Access Protocol (XCAP) approved as Proposed Standard
June 16, 2005: The SDP (Session Description Protocol) Label Attribute approved as Proposed Standard
June 13, 2005: Actions addressing identified issues with the Session Initiation Protocol's non-INVITE Transaction approved as Proposed Standard
June 8, 2005: RFC 4091 (The Alternative Network Address Types (ANAT) Semantics for the Session Description Protocol (SDP) Grouping Framework) published
June 8, 2005: RFC 4092 ( Usage of the Session Description Protocol (SDP) Alternative Network Address Types (ANAT) Semantics in the Session Initiation Protocol (SIP))) published
May 23, 2005: RFC 4083 ( Input 3rd-Generation Partnership Project (3GPP) Release 5 Requirements on the Session Initiation Protocol (SIP)) published
May 16, 2005: High Level Requirements for Tightly Coupled SIP Conferencing approved as Informational
May 16, 2005: An Extension to the Session Initiation Protocol for Request History Information approved as Proposed Standard
May 2, 2005: RFC 4028 (Session Timers in the Session Initiation Protocol (SIP)) published
April 26, 2005: Basic Network Media Services with SIP approved as Proposed Standard
April 26, 2005: An INVITE Inititiated Dialog Event Package for the Session Initiation Protocol (SIP) approved as Proposed Stanard
April 4, 2005: A Session Initiation Protocol (SIP) Event Package for Key Press Stimulus (KPML) approved as Proposed Standard
March 31, 2005: Functional Description of Event Notification Filtering approved as Proposed Standard
March 15, 2005: Guidelines for Authors of Extensions to the Session Initiation Protocol (SIP) approved as Informational
March 14, 2005: The Stream Control Transmission Protocol (SCTP) as a Transport for the Session Initiation Protocol (SIP) approved as Proposed Standard
March 11, 2005: RFC 4032 (Update to the Session Initiation Protocol (SIP) Preconditions Framework) published
March 10, 2005: Connection-Oriented Media Transport in the Session Description Protocol (SDP) approved as Proposed Standard
March 7, 2005: An Extensible Markup Language (XML) Configuration Access Protocol (XCAP) Usage for Manipulating Presence Document Contents approved as Proposed Standard
February 21, 2005: Extensible Markup Language (XML) Formats for Representing Resource Lists approved as Proposed Standard
February 2, 2005: RFC 3994 (Indication of Message Composition for Instant Messaging) published
January 20, 2005: RFC 3976 (Interworking SIP and Intelligent Network (IN) Applications) published
January 19, 2005: Session Initiation Protocol (SIP)-H.323 Interworking Requirements approved as Informational
December 21, 2004: RFC 3968: The Internet Assigned Number Authority (IANA) Header Field Parameter Registry for the Session Initiation Protocol (SIP) published
December 21, 2004: RFC 3960: Early Media and Ringing Tone Generation in the Session Initiation Protocol (SIP) published
December 21, 2004: RFC 3959: The Early Session Disposition Type for the Session Initiation Protocol (SIP) published
December 21, 2004: The Alternative Network Address Types Semantics (ANAT) for theSession Description Protocol (SDP) Grouping Framework approved (Proposed Standard)
December 1, 2004: Usage of the Session Description Protocol (SDP) Alternative Network Address Types (ANAT) Semantics in the Session Initiation Protocol (SIP) approved (Proposed Standard)
November 11, 2004: Transcoding Services Invocation in the Session Initiation Protocol (SIP) Using Third Party Call Control (3pcc) approved (informational)
November 11, 2004: Input 3rd-Generation Partnership Project (3GPP) Release 5 requirements on the Session Initiation Protocol (SIP) approved (informational)
November 1, 2004: Update to the Session Initiation Protocol (SIP) Preconditions Framework approved as Proposed Standard
November 1, 2004: RFC 3903 (Session Initiation Protocol (SIP) Extension for Event State Publication) published
November 1, 2004: RFC 3880 (Call Processing Language (CPL): A Language for User Control of Internet Telephony Services) published
October 22, 2004: RFC 3911 (The Session Initiation Protocol (SIP) "Join" Header) published
September 28, 2004: RFC 3893 (Session Initiation Protocol (SIP) Authenticated Identity Body (AIB) Format) published
September 28, 2004: RFC 3892 (The Session Initiation Protocol (SIP) Referred-By Mechanism) published
September 28, 2004: RFC 3891 (The Session Initiation Protocol (SIP) "Replaces" Header) published
September 15, 2004: A Presence-based GEOPRIV Location Object Format approved as Proposed Standard.
August 31, 2004: RFC 3840 (Indicating User Agent Capabilities in the Session Initiation Protocol (SIP)) published.
August 31, 2004: RFC 3841 (Caller Preferences for the Session Initiation Protocol (SIP)) published.
August 31, 2004: RFC 3842 (A Message Summary and Message Waiting Indication Event Package for the Session Initiation Protocol (SIP)) published.
August 31, 2004: RFC 3856 (A Presence Event Package for the Session Initiation Protocol (SIP)) published.
August 31, 2004: RFC 3857 (A Watcher Information Event Template-Package for the Session Initiation Protocol (SIP)) published.
August 31, 2004: RFC 3858 (An Extensible Markup Language (XML) Based Format for Watcher Information) published.
August 27, 2004: Indication of Message Composition for Instant Messaging approved as Proposed Standard.
August 17, 2004: The tel URI for Telephone Numbers approved as Proposed Standard.
August 17, 2004: Session Timers in the Session Initiation Protocol (SIP) approved as Proposed Standard.
July 26, 2004: The Early Session Disposition Type for the Session Initiation Protocol (SIP) approved as Proposed Standard and Early Media and Ringing Tone Generation in the Session Initiation Protocol approved as BCP.
July 21, 2004: RFC 3853 (S/MIME Advanced Encryption Standard (AES) Requirement for the Session Initiation Protocol (SIP)) published.
June 29, 2004: RFC 3824 (Using E.164 numbers with the Session Initiation Protocol (SIP)) published.
June 28, 2004: The Internet Assigned Number Authority (IANA) Header Field Parameter Registry for the Session Initiation Protocol (SIP) and The Internet Assigned Number Authority (IANA) Universal Resource Identifier (URI) Parameter Registry for the Session Initiation Protocol (SIP) approved as BCP.
June 2, 2004: Session Initiation Protocol (SIP) Extension for Event State Publication approved as Proposed Standard.
June 1, 2004: The Session Inititation Protocol (SIP) 'Join' Header approved as Proposed Standard.
May 28, 2004: CPL: A Language for User Control of Internet Telephony Services approved as Proposed Standard.
May 19, 2004: H.350 Directory Services approved as an Informational RFC.
May 17, 2004: The SPIRITS (Services in PSTN requesting Internet services) Protocol approved as Proposed Standard.
May 10, 2004: SIP Authenticated Identity Body (AIB) Format approved as Proposed Standard.
April 20, 2004: S/MIME AES Requirement for SIP approved as Proposed Standard.
April 13, 2004: RFC 3275 (Best Current Practices for Third Party Call Control (3pcc) in the Session Initiation Protocol (SIP))
March 31, 2004: RFC 3680 (A Session Initiation Protocol (SIP) Event Package for Registrations)
March 22, 2004: The Session Inititation Protocol (SIP) 'Replaces' Header approved as a Proposed Standard.
February 19, 2004: RFC 3702 (Authentication, Authorization, and Accounting Requirements for the Session Initiation Protocol (SIP))
January 7, 2004: Indicating User Agent Capabilities in the Session Initiation Protocol (SIP) approved as Proposed Standard.
January 5, 2004: RFC 3666 (Session Initiation Protocol (SIP) Public Switched Telephone Network (PSTN) Call Flows)
January 5, 2004: RFC 3665 (Session Initiation Protocol (SIP) Basic Call Flow Examples)
October 10, 2003: RFC 3605 (Real Time Control Protocol (RTCP) attribute in Session Description Protocol (SDP))
October 10, 2003: RFC 3603 (Private Session Initiation Protocol (SIP) Proxy-to-Proxy Extensions for Supporting the PacketCable Distributed Call Signaling Architecture)
October 8, 2003: RFC 3806 (Session Initiation Protocol (SIP) Extension Header Field for Service Route Discovery During Registration) published
August 26, 2003: RFC 3581 (An Extension to the Session Initiation Protocol (SIP) for Symmetric Response Routing) published
August 1, 2003: Session Initiation Protocol Extension Header Field for Service Route Discovery During Registration approved as a Proposed Standard
July 30, 2003: RFC 3319 (Dynamic Host Configuration Protocol (DHCPv6) Options for Session Initiation Protocol (SIP) Servers) published
April 28, 2003: RFC 3524 (Mapping of Media Streams to Resource Reservation Flows) published
April 23, 2003: A Presence Event Package for the Session Initiation Protocol (SIP)', 'A Session Initiation Protocol (SIP) Event Template-Package for Watcher Information' and 'An Extensible Markup Language (XML) Based Format for Watcher Information' approved as Proposed Standards.
April 10, 2003: RFC 3515 (The Session Initiation Protocol (SIP) Refer Method) published
New IPC software tool for displaying SIP call flows.
March 4, 2003: RFC 3485 (The Session Initiation Protocol (SIP) and Session Description Protocol (SDP) Static Dictionary for Signaling Compression (SigComp)) published
March 4, 2003: RFC 3487 (Requirements for Resource Priority Mechanisms for the Session Initiation Protocol (SIP)) published
March 4, 2003: RFC 3486 (Compressing the Session Initiation Protocol (SIP)) published
January 23, 2003: RFC 3313 (Private Session Initiation Protocol (SIP) Extensions for Media Authorization) published
January 13, 2003: 'Requirements for Resource Priority Mechanisms for the Session Initiation Protocol' approved as an Informational RFC.
December 19, 2002: RFC 3388 (Grouping of Media Lines in Session Description Protocol (SDP)) published
December 17, 2002: 'Mapping of Media Streams to Resource Reservation Flows' approved as Proposed Standard
December 16, 2002: 'The Refer Method' approved as Proposed Standard
December 16, 2002: 'A Session Initiation Protocol (SIP) Event Package for Registrations' approved as Proposed Standard
December 13, 2002: RFC 3327 (Session Initiation Protocol (SIP) Extension Header Field for Registering Non-Adjacent Contacts) published
December 6, 2002: RFC 3398 (Integrated Services Digital Network (ISDN) User Part (ISUP) to Session Initiation Protocol (SIP) Mapping) published
December 6, 2002: RFC 3326 (The Reason Header Field for the Session Initiation Protocol (SIP)) published
December 6, 2002: RFC 3428 (Session Initiation Protocol (SIP) Extension for Instant Messaging) published
December 4, 2002: RFC 3323 (A Privacy Mechanism for the Session Initiation Protocol (SIP)) published
December 4, 2002: RFC 3325 (Private Extensions to the Session Initiation Protocol (SIP) for Asserted Identity within Trusted Networks) published
November 26, 2002: 'The Session Initiation Protocol (SIP) and Session Description Protocol (SDP) static dictionary for Signaling Compression (SigComp)' and 'Compressing the Session Initiation Protocol' approved as Proposed Standards.
November 7, 2002: 'DHCPv6 Options for SIP Servers' approved as Proposed Standard.
November 5, 2002: PDF versions of the core SIP specifications are now available.
November 1, 2002: CPL schema definition
September 23, 2002: 'Internet Media Types message/sipfrag' approved as Proposed Standard.
September 20, 2002: 'Session Initiation Protocol Extension for Instant Messaging' approved as a Proposed Standard.
September 2002: RFC 3311 (The Session Initiation Protocol (SIP) UPDATE Method) published
September 2002: RFC 3372 (Session Initiation Protocol for Telephones (SIP-T): Context and Architectures) published
September 1, 2002: IETF liaison statement to 3GPP
August 28, 2002: SDP Simple Capability Declaration approved as Proposed Standard.
August 27, 2002: RFC 3361 (Dynamic Host Configuration Protocol (DHCP-for-IPv4) Option for Session Initiation Protocol (SIP) Servers) published
August 26, 2002: Grouping of m lines in SDP approved as Proposed Standard.
August 15, 2002: RFC 3351 (User Requirements for the Session Initiation Protocol (SIP) in Support of Deaf, Hard of Hearing and Speech-impaired Individual) published
July 22, 2002: List of differences between draft-ietf-sip-rfc2543bis-09 and RFC 3261.
July 9, 2002: 'SIP for Telephones (SIP-T): Context and Architectures' (draft-ietf-sipping-sipt-04.txt) approved as a BCP.
July 3, 2002: RFC 3261 (SIP: Session Initiation Protocol), RFC 3262 (Reliability of Provisional Responses in Session Initiation Protocol (SIP)), RFC 3263 (Session Initiation Protocol (SIP): Locating SIP Servers), RFC 3264 (An Offer/Answer Model with Session Description Protocol (SDP)), RFC 3265 (Session Initiation Protocol (SIP)-Specific Event Notification), RFC 3266 (Support for IPv6 in Session Description Protocol (SDP)) published
June 24, 2002: Signaling Compression approved as a Proposed Standard; SigComp - Extended Operations and Signaling Compression Requirements & Assumptions approved for publication as Informational RFCs.
June 24, 2002: Extensions to the Session Initiation Protocol (SIP) for Asserted Identity and Short term requirements for Network Asserted Identity approved for publication as Informational RFCs
June 24, 2002: Reason Header Field for the Session Initiation Protocol and SIP Extension for Registering Non-Adjacent Contacts approved as Proposed Standards.
May 17, 2002: SIP UPDATE and resource management approved as Proposed Standards.
May 6/7, 2002: SIP/SIPPING interim meeting in Las Vegas.
April 6, 2002: SIP DHCP has been approved as Proposed Standard.
March 7, 2002: SIP "bis" and related documents have been approved as Proposed Standards.
February 22, 2002: The revised SIP specification, along with Reliability of Provisional Responses in SIP, SIP: Locating SIP Servers, SIP-Specific Event Notification, and An Offer/Answer Model with SDP, have been submitted for IETF last call.
February 5, 2002: CPL was approved as a Proposed Standard.
January 18, 2002: RFC 3219 (Telephony Routing over IP (TRIP)) published
The tenth SIP interoperability test event will be held April 22-26, 2002 in Cannes, France at the Royal Casino Hotel, hosted by ETSI.
December 2001: The ninth SIP interoperability test event took place in San Diego, hosted by Nuera.
October 26, 2001: A completely editorially revised version of the SIP specification has been released for comment.
The eighth SIP interoperability test event took place August 13-17, 2001 in Cardiff, UK.
July 25, 2001: AOL submits statement on use of SIMPLE to FCC
June 29, 2001: picture gallery of some SIP products and icons for SIP servers
May 29, 2001: RFC2543bis (-03) draft
May 4, 2001: Information about the 8th SIP Interoperability Test Event is now available
April 14, 2001: search feature added.
April 11, 2001: The SIP interoperability test event has a new logo, courtesy of Ubiquity.
April 10, 2001: RFC 3087 (Control of Service Context using SIP Request-URI) published
Feb. 1, 2001: RFC 3050 (Common Gateway Interface for SIP) (sip-cgi) published
Nov. 30, 2000: Caller preferences draft in WG last call until December 24, 2000
Nov. 29, 2000: Guidelines for Authors of SIP Extensions draft in WG last call until December 24, 2000
November 24, 2000: RFC2543bis (-02) draft
Nov. 17, 2000: CPL in IESG last call.
RFC 2976 (The SIP INFO Method) published
The sixth SIP interoperability test event took place December 5-8, 2000 at Sylantro and Sun in Silicon Valley, California.
June 20, 2000: The SIP Forum was founded. "SIP Forum is a non profit association whose mission is to promote awareness and provide information about the benefits and capabilities that are enabled by SIP."
The fifth SIP interoperability test event took place August 8-10, 2000 at pulver.com in Melville, Long Island.
June 15, 2000: RFC 2848, The PINT Service Protocol: Extensions to SIP and SDP for IP Access to Telephone Call Services, published.
Added SIP internship and job listing.
The fourth SIP interoperability test event took place April 17-19, 2000 in Rolling Meadows (near Chicago), Illinois, hosted by 3Com.
February 28, 2000: Draft The SIP INFO Method is in IETF last call for Proposed Standard.
September 1999: A new IETF working group on SIP has been created.
The third SIP interoperability test event took place December 6th through 8th, 1999 in Richardson, Texas, hosted by Ericsson.
The second SIP interoperability test event took place August 5th and 6th, 1999 at pulver.com (Melville, NY).
The first SIP interoperability test event (known as "bake off") took place April 8th and 9th, 1999 at Columbia University, New York.
SIP is a Proposed Standard (Feb. 2, 1999) published as RFC 2543 (March 17, 1999).
New list of public SIP servers.

Last updated by Henning Schulzrinne