| 9071 | RTP-Mixer Formatting of Multiparty Real-Time TextG. Hellström | Proposed Standard | July 2021 |
| 8871 | A Solution Framework for Private Media in Privacy-Enhanced RTP Conferencing (PERC)P. Jones, D. Benham, C. Groves | Proposed Standard | January 2021 |
| 8847 | Protocol for Controlling Multiple Streams for Telepresence (CLUE)R. Presta, S P. Romano | Experimental | January 2021 |
| 8846 | An XML Schema for the Controlling Multiple Streams for Telepresence (CLUE) Data ModelR. Presta, S P. Romano | Proposed Standard | January 2021 |
| 8845 | Framework for Telepresence Multi-StreamsM. Duckworth, Ed., A. Pepperell, S. Wenger | Proposed Standard | January 2021 |
| 8068 | Session Initiation Protocol (SIP) Recording Call FlowsR. Ravindranath, P. Ravindran, P. Kyzivat | Informational | February 2017 |
| 7989 | End-to-End Session Identification in IP-Based Multimedia Communication NetworksP. Jones, G. Salgueiro, C. Pearce, P. Giralt | Proposed Standard | October 2016 |
| 7702 | Interworking between the Session Initiation Protocol (SIP) and the Extensible Messaging and Presence Protocol (XMPP): GroupchatP. Saint-Andre, S. Ibarra, S. Loreto | Proposed Standard | December 2015 |
| 7701 | Multi-party Chat Using the Message Session Relay Protocol (MSRP)A. Niemi, M. Garcia-Martin, G. Sandbakken | Proposed Standard | December 2015 |
| 7656 | A Taxonomy of Semantics and Mechanisms for Real-Time Transport Protocol (RTP) SourcesJ. Lennox, K. Gross, S. Nandakumar, G. Salgueiro, B. Burman, Ed. | Informational | November 2015 |
| 7262 | Requirements for Telepresence MultistreamsA. Romanow, S. Botzko, M. Barnes | Informational | June 2014 |
| 7245 | An Architecture for Media Recording Using the Session Initiation ProtocolA. Hutton, Ed., L. Portman, Ed., R. Jain, K. Rehor | Informational | May 2014 |
| 7082 | Indication of Conference Focus Support for the Centralized Conferencing Manipulation Protocol (CCMP)R. Shekh-Yusef, M. Barnes | Informational | December 2013 |
| 7081 | CUSAX: Combined Use of the Session Initiation Protocol (SIP) and the Extensible Messaging and Presence Protocol (XMPP)E. Ivov, P. Saint-Andre, E. Marocco | Informational | November 2013 |
| 6914 | SIMPLE Made Simple: An Overview of the IETF Specifications for Instant Messaging and Presence Using the Session Initiation Protocol (SIP)J. Rosenberg | Informational | April 2013 |
| 6501 | Conference Information Data Model for Centralized Conferencing (XCON)O. Novo, G. Camarillo, D. Morgan, J. Urpalainen | Proposed Standard | March 2012 |
| 6465 | A Real-time Transport Protocol (RTP) Header Extension for Mixer-to-Client Audio Level IndicationE. Ivov, Ed., E. Marocco, Ed., J. Lennox | Proposed Standard | December 2011 |
| 5850 | A Call Control and Multi-Party Usage Framework for the Session Initiation Protocol (SIP)R. Mahy, R. Sparks, J. Rosenberg, D. Petrie, A. Johnston, Ed. | Informational | May 2010 |
| 5629 | A Framework for Application Interaction in the Session Initiation Protocol (SIP)J. Rosenberg | Proposed Standard | October 2009 |
| 5589 | Session Initiation Protocol (SIP) Call Control - TransferR. Sparks, A. Johnston, Ed., D. Petrie | Best Current Practice | June 2009 |
| 5567 | An Architectural Framework for Media Server ControlT. Melanchuk, Ed. | Informational | June 2009 |
| 5366 | Conference Establishment Using Request-Contained Lists in the Session Initiation Protocol (SIP)G. Camarillo, A. Johnston | Proposed Standard | October 2008 |
| 5239 | A Framework for Centralized ConferencingM. Barnes, C. Boulton, O. Levin | Proposed Standard | June 2008 |
| 5167 | Media Server Control Protocol RequirementsM. Dolly, R. Even | Informational | March 2008 |
| 5022 | Media Server Control Markup Language (MSCML) and ProtocolJ. Van Dyke, E. Burger, Ed., A. Spitzer | Informational | September 2007 |
| 4964 | The P-Answer-State Header Extension to the Session Initiation Protocol for the Open Mobile Alliance Push to Talk over CellularA. Allen, Ed., J. Holm, T. Hallin | Informational | September 2007 |
| 4722 | Media Server Control Markup Language (MSCML) and ProtocolJ. Van Dyke, E. Burger, Ed., A. Spitzer · obsoleted by RFC 5022 | Informational | November 2006 |
| 4597 | Conferencing ScenariosR. Even, N. Ismail | Informational | August 2006 |
| 4579 | Session Initiation Protocol (SIP) Call Control - Conferencing for User AgentsA. Johnston, O. Levin | Best Current Practice | August 2006 |
| 4575 | A Session Initiation Protocol (SIP) Event Package for Conference StateJ. Rosenberg, H. Schulzrinne, O. Levin, Ed. | Proposed Standard | August 2006 |
| 4538 | Request Authorization through Dialog Identification in the Session Initiation Protocol (SIP)J. Rosenberg | Proposed Standard | June 2006 |
| 4376 | Requirements for Floor Control ProtocolsP. Koskelainen, J. Ott, H. Schulzrinne, X. Wu | Informational | February 2006 |
| 4354 | A Session Initiation Protocol (SIP) Event Package and Data Format for Various Settings in Support for the Push-to-Talk over Cellular (PoC) ServiceM. Garcia-Martin | Informational | January 2006 |