| 9248 | Interoperability Profile for Relay User EquipmentB. Rosen | Proposed Standard | June 2022 |
| 8217 | Clarifications for When to Use the name-addr Production in SIP MessagesR. Sparks | Proposed Standard | August 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 |
| 7647 | Clarifications for the Use of REFER with RFC 6665R. Sparks, A.B. Roach | Proposed Standard | September 2015 |
| 7614 | Explicit Subscriptions for the REFER MethodR. Sparks | Proposed Standard | August 2015 |
| 7463 | Shared Appearances of a Session Initiation Protocol (SIP) Address of Record (AOR)A. Johnston, Ed., M. Soroushnejad, Ed., V. Venkataramanan | Proposed Standard | March 2015 |
| 7433 | A Mechanism for Transporting User-to-User Call Control Information in SIPA. Johnston, J. Rafferty | Proposed Standard | January 2015 |
| 7329 | A Session Identifier for the Session Initiation Protocol (SIP)H. Kaplan · obsoleted by RFC 7989 | Informational | August 2014 |
| 7315 | Private Header (P-Header) Extensions to the Session Initiation Protocol (SIP) for the 3GPPR. Jesske, K. Drage, C. Holmberg | Informational | July 2014 |
| 6910 | Completion of Calls for the Session Initiation Protocol (SIP)D. Worley, M. Huelsemann, R. Jesske, D. Alexeitsev | Proposed Standard | April 2013 |
| 6881 | Best Current Practice for Communications Services in Support of Emergency CallingB. Rosen, J. Polk | Best Current Practice | March 2013 |
| 6794 | A Framework for Session Initiation Protocol (SIP) Session PoliciesV. Hilt, G. Camarillo, J. Rosenberg | Proposed Standard | December 2012 |
| 6665 | SIP-Specific Event NotificationA.B. Roach | Proposed Standard | July 2012 |
| 6567 | Problem Statement and Requirements for Transporting User-to-User Call Control Information in SIPA. Johnston, L. Liess | Informational | April 2012 |
| 6501 | Conference Information Data Model for Centralized Conferencing (XCON)O. Novo, G. Camarillo, D. Morgan, J. Urpalainen | Proposed Standard | March 2012 |
| 6443 | Framework for Emergency Calling Using Internet MultimediaB. Rosen, H. Schulzrinne, J. Polk, A. Newton | Informational | December 2011 |
| 6442 | Location Conveyance for the Session Initiation ProtocolJ. Polk, B. Rosen, J. Peterson | Proposed Standard | December 2011 |
| 6236 | Negotiation of Generic Image Attributes in the Session Description Protocol (SDP)I. Johansson, K. Jung | Proposed Standard | May 2011 |
| 6050 | A Session Initiation Protocol (SIP) Extension for the Identification of ServicesK. Drage | Informational | November 2010 |
| 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 |
| 5839 | An Extension to Session Initiation Protocol (SIP) Events for Conditional Event NotificationA. Niemi, D. Willis, Ed. | Proposed Standard | May 2010 |
| 5767 | User-Agent-Driven Privacy Mechanism for SIPM. Munakata, S. Schubert, T. Ohba | Informational | April 2010 |
| 5631 | Session Initiation Protocol (SIP) Session MobilityR. Shacham, H. Schulzrinne, S. Thakolsri, W. Kellerer | Informational | October 2009 |
| 5630 | The Use of the SIPS URI Scheme in the Session Initiation Protocol (SIP)F. Audet | Proposed Standard | October 2009 |
| 5629 | A Framework for Application Interaction in the Session Initiation Protocol (SIP)J. Rosenberg | Proposed Standard | October 2009 |
| 5627 | Obtaining and Using Globally Routable User Agent URIs (GRUUs) 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 |
| 5552 | SIP Interface to VoiceXML Media ServicesD. Burke, M. Scott | Proposed Standard | May 2009 |
| 5503 | Private Session Initiation Protocol (SIP) Proxy-to-Proxy Extensions for Supporting the PacketCable Distributed Call Signaling ArchitectureF. Andreasen, B. McKibben, B. Marshall | Informational | March 2009 |
| 5411 | A Hitchhiker's Guide to the Session Initiation Protocol (SIP)J. Rosenberg | Informational | February 2009 |
| 5407 | Example Call Flows of Race Conditions in the Session Initiation Protocol (SIP)M. Hasebe, J. Koshiko, Y. Suzuki, T. Yoshikawa, P. Kyzivat | Best Current Practice | December 2008 |
| 5368 | Referring to Multiple Resources in the Session Initiation Protocol (SIP)G. Camarillo, A. Niemi, M. Isomaki, M. Garcia-Martin, H. Khartabil | Proposed Standard | October 2008 |
| 5359 | Session Initiation Protocol Service ExamplesA. Johnston, Ed., R. Sparks, C. Cunningham, S. Donovan, K. Summers | Best Current Practice | October 2008 |
| 5057 | Multiple Dialog Usages in the Session Initiation ProtocolR. Sparks | Informational | November 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 |
| 4579 | Session Initiation Protocol (SIP) Call Control - Conferencing for User AgentsA. Johnston, O. Levin | Best Current Practice | August 2006 |
| 4538 | Request Authorization through Dialog Identification in the Session Initiation Protocol (SIP)J. Rosenberg | Proposed Standard | June 2006 |
| 4508 | Conveying Feature Tags with the Session Initiation Protocol (SIP) REFER MethodO. Levin, A. Johnston | Proposed Standard | May 2006 |
| 4504 | SIP Telephony Device Requirements and ConfigurationH. Sinnreich, Ed., S. Lass, C. Stredicke | Informational | May 2006 |
| 4488 | Suppression of Session Initiation Protocol (SIP) REFER Method Implicit SubscriptionO. Levin | Proposed Standard | May 2006 |
| 4485 | Guidelines for Authors of Extensions to the Session Initiation Protocol (SIP)J. Rosenberg, H. Schulzrinne | Informational | May 2006 |
| 4412 | Communications Resource Priority for the Session Initiation Protocol (SIP)H. Schulzrinne, J. Polk | Proposed Standard | February 2006 |
| 4353 | A Framework for Conferencing with the Session Initiation Protocol (SIP)J. Rosenberg | Informational | February 2006 |
| 4235 | An INVITE-Initiated Dialog Event Package for the Session Initiation Protocol (SIP)J. Rosenberg, H. Schulzrinne, R. Mahy, Ed. | Proposed Standard | November 2005 |
| 4083 | Input 3rd-Generation Partnership Project (3GPP) Release 5 Requirements on the Session Initiation Protocol (SIP)M. Garcia-Martin | Informational | May 2005 |
| 3911 | The Session Initiation Protocol (SIP) "Join" HeaderR. Mahy, D. Petrie | Proposed Standard | October 2004 |
| 3892 | The Session Initiation Protocol (SIP) Referred-By MechanismR. Sparks | Proposed Standard | September 2004 |
| 3891 | The Session Initiation Protocol (SIP) "Replaces" HeaderR. Mahy, B. Biggs, R. Dean | Proposed Standard | September 2004 |
| 3841 | Caller Preferences for the Session Initiation Protocol (SIP)J. Rosenberg, H. Schulzrinne, P. Kyzivat | Proposed Standard | August 2004 |
| 3603 | Private Session Initiation Protocol (SIP) Proxy-to-Proxy Extensions for Supporting the PacketCable Distributed Call Signaling ArchitectureW. Marshall, Ed., F. Andreasen, Ed. · obsoleted by RFC 5503 | Informational | October 2003 |