| 2119 | Key words for use in RFCs to Indicate Requirement LevelsS. Bradner | Best Current Practice | March 1997 |
| 3261 | SIP: Session Initiation ProtocolJ. Rosenberg, H. Schulzrinne, G. Camarillo, A. Johnston, J. Peterson, R. Sparks, M. Handley, E. Schooler | Proposed Standard | July 2002 |
| 3323 | A Privacy Mechanism for the Session Initiation Protocol (SIP)J. Peterson | Proposed Standard | December 2002 |
| 3665 | Session Initiation Protocol (SIP) Basic Call Flow ExamplesA. Johnston, S. Donovan, R. Sparks, C. Cunningham, K. Summers | Best Current Practice | January 2004 |
| 3891 | The Session Initiation Protocol (SIP) "Replaces" HeaderR. Mahy, B. Biggs, R. Dean | Proposed Standard | September 2004 |
| 3911 | The Session Initiation Protocol (SIP) "Join" HeaderR. Mahy, D. Petrie | Proposed Standard | October 2004 |
| 4538 | Request Authorization through Dialog Identification in the Session Initiation Protocol (SIP)J. Rosenberg | Proposed Standard | June 2006 |
| 4568 | Session Description Protocol (SDP) Security Descriptions for Media StreamsF. Andreasen, M. Baugher, D. Wing | Proposed Standard | July 2006 |
| 5234 | Augmented BNF for Syntax Specifications: ABNFD. Crocker, Ed., P. Overell | Internet Standard | January 2008 |
| 5589 | Session Initiation Protocol (SIP) Call Control - TransferR. Sparks, A. Johnston, Ed., D. Petrie | Best Current Practice | June 2009 |
| 5627 | Obtaining and Using Globally Routable User Agent URIs (GRUUs) in the Session Initiation Protocol (SIP)J. Rosenberg | Proposed Standard | October 2009 |
| 6064 | SDP and RTSP Extensions Defined for 3GPP Packet-Switched Streaming Service and Multimedia Broadcast/Multicast ServiceM. Westerlund, P. Frojdh | Informational | January 2011 |
| 6872 | The Common Log Format (CLF) for the Session Initiation Protocol (SIP): Framework and Information ModelV. Gurbani, Ed., E. Burger, Ed., T. Anjali, H. Abdelnur, O. Festor | Proposed Standard | February 2013 |
| 6873 | Format for the Session Initiation Protocol (SIP) Common Log Format (CLF)G. Salgueiro, V. Gurbani, A. B. Roach | Proposed Standard | February 2013 |
| 6973 | Privacy Considerations for Internet ProtocolsA. Cooper, H. Tschofenig, B. Aboba, J. Peterson, J. Morris, M. Hansen, R. Smith | Informational | July 2013 |
| 7092 | A Taxonomy of Session Initiation Protocol (SIP) Back-to-Back User AgentsH. Kaplan, V. Pascual | Informational | December 2013 |
| 7206 | Requirements for an End-to-End Session Identification in IP-Based Multimedia Communication NetworksP. Jones, G. Salgueiro, J. Polk, L. Liess, H. Kaplan | Informational | May 2014 |
| 7841 | RFC Streams, Headers, and BoilerplatesJ. Halpern, Ed., L. Daigle, Ed., O. Kolkman, Ed. | Informational | May 2016 |
| 7989 | End-to-End Session Identification in IP-Based Multimedia Communication NetworksP. Jones, G. Salgueiro, C. Pearce, P. Giralt | Proposed Standard | October 2016 |
| 8123 | Requirements for Marking SIP Messages to be LoggedP. Dawes, C. Arunachalam | Informational | March 2017 |
| 8174 | Ambiguity of Uppercase vs Lowercase in RFC 2119 Key WordsB. Leiba | Best Current Practice | May 2017 |