| 6794 | A Framework for Session Initiation Protocol (SIP) Session PoliciesV. Hilt, G. Camarillo, J. Rosenberg | Proposed Standard | December 2012 |
| 6072 | Certificate Management Service for the Session Initiation Protocol (SIP)C. Jennings, J. Fischl, Ed. | Proposed Standard | February 2011 |
| 5954 | Essential Correction for IPv6 ABNF and URI Comparison in RFC 3261V. Gurbani, Ed., B. Carpenter, Ed., B. Tate, Ed. | Proposed Standard | August 2010 |
| 5924 | Extended Key Usage (EKU) for Session Initiation Protocol (SIP) X.509 CertificatesS. Lawrence, V. Gurbani | Experimental | June 2010 |
| 5923 | Connection Reuse in the Session Initiation Protocol (SIP)V. Gurbani, Ed., R. Mahy, B. Tate | Proposed Standard | June 2010 |
| 5922 | Domain Certificates in the Session Initiation Protocol (SIP)V. Gurbani, S. Lawrence, A. Jeffrey | Proposed Standard | June 2010 |
| 5875 | An Extensible Markup Language (XML) Configuration Access Protocol (XCAP) Diff Event PackageJ. Urpalainen, D. Willis, Ed. | Proposed Standard | May 2010 |
| 5768 | Indicating Support for Interactive Connectivity Establishment (ICE) in the Session Initiation Protocol (SIP)J. Rosenberg | Proposed Standard | April 2010 |
| 5767 | User-Agent-Driven Privacy Mechanism for SIPM. Munakata, S. Schubert, T. Ohba | Informational | April 2010 |
| 5763 | Framework for Establishing a Secure Real-time Transport Protocol (SRTP) Security Context Using Datagram Transport Layer Security (DTLS)J. Fischl, H. Tschofenig, E. Rescorla | Proposed Standard | May 2010 |
| 5658 | Addressing Record-Route Issues in the Session Initiation Protocol (SIP)T. Froment, C. Lebel, B. Bonnaerens | Proposed Standard | October 2009 |
| 5630 | The Use of the SIPS URI Scheme in the Session Initiation Protocol (SIP)F. Audet | 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 |
| 5626 | Managing Client-Initiated Connections in the Session Initiation Protocol (SIP)C. Jennings, Ed., R. Mahy, Ed., F. Audet, Ed. | Proposed Standard | October 2009 |
| 5621 | Message Body Handling in the Session Initiation Protocol (SIP)G. Camarillo | Proposed Standard | September 2009 |
| 5479 | Requirements and Analysis of Media Security Management ProtocolsD. Wing, Ed., S. Fries, H. Tschofenig, F. Audet | Informational | April 2009 |
| 5478 | IANA Registration of New Session Initiation Protocol (SIP) Resource-Priority NamespacesJ. Polk | Proposed Standard | March 2009 |
| 5411 | A Hitchhiker's Guide to the Session Initiation Protocol (SIP)J. Rosenberg | Informational | February 2009 |
| 5393 | Addressing an Amplification Vulnerability in Session Initiation Protocol (SIP) Forking ProxiesR. Sparks, Ed., S. Lawrence, A. Hawrylyshen, B. Campen | Proposed Standard | December 2008 |
| 5373 | Requesting Answering Modes for the Session Initiation Protocol (SIP)D. Willis, Ed., A. Allen | Proposed Standard | November 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 |
| 5367 | Subscriptions to Request-Contained Resource Lists in the Session Initiation Protocol (SIP)G. Camarillo, A.B. Roach, O. Levin | Proposed Standard | October 2008 |
| 5366 | Conference Establishment Using Request-Contained Lists in the Session Initiation Protocol (SIP)G. Camarillo, A. Johnston | Proposed Standard | October 2008 |
| 5365 | Multiple-Recipient MESSAGE Requests in the Session Initiation Protocol (SIP)M. Garcia-Martin, G. Camarillo | Proposed Standard | October 2008 |
| 5360 | A Framework for Consent-Based Communications in the Session Initiation Protocol (SIP)J. Rosenberg, G. Camarillo, Ed., D. Willis | Proposed Standard | October 2008 |
| 5079 | Rejecting Anonymous Requests in the Session Initiation Protocol (SIP)J. Rosenberg | Proposed Standard | December 2007 |
| 4916 | Connected Identity in the Session Initiation Protocol (SIP)J. Elwell | Proposed Standard | June 2007 |
| 4780 | Management Information Base for the Session Initiation Protocol (SIP)K. Lingle, J-F. Mule, J. Maeng, D. Walker | Proposed Standard | April 2007 |
| 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 |
| 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 |
| 4483 | A Mechanism for Content Indirection in Session Initiation Protocol (SIP) MessagesE. Burger, Ed. | Proposed Standard | May 2006 |
| 4474 | Enhancements for Authenticated Identity Management in the Session Initiation Protocol (SIP)J. Peterson, C. Jennings · obsoleted by RFC 8224 | Proposed Standard | August 2006 |
| 4412 | Communications Resource Priority for the Session Initiation Protocol (SIP)H. Schulzrinne, J. Polk | Proposed Standard | February 2006 |
| 4321 | Problems Identified Associated with the Session Initiation Protocol's (SIP) Non-INVITE TransactionR. Sparks | Informational | January 2006 |
| 4320 | Actions Addressing Identified Issues with the Session Initiation Protocol's (SIP) Non-INVITE TransactionR. Sparks | Proposed Standard | January 2006 |
| 4244 | An Extension to the Session Initiation Protocol (SIP) for Request History InformationM. Barnes, Ed. · obsoleted by RFC 7044 | Proposed Standard | November 2005 |
| 4168 | The Stream Control Transmission Protocol (SCTP) as a Transport for the Session Initiation Protocol (SIP)J. Rosenberg, H. Schulzrinne, G. Camarillo | Proposed Standard | October 2005 |
| 4092 | Usage of the Session Description Protocol (SDP) Alternative Network Address Types (ANAT) Semantics in the Session Initiation Protocol (SIP)G. Camarillo, J. Rosenberg · obsoleted by RFC 5245 | Proposed Standard | June 2005 |
| 4032 | Update to the Session Initiation Protocol (SIP) Preconditions FrameworkG. Camarillo, P. Kyzivat | Proposed Standard | March 2005 |
| 4028 | Session Timers in the Session Initiation Protocol (SIP)S. Donovan, J. Rosenberg | Proposed Standard | May 2005 |
| 3969 | The Internet Assigned Number Authority (IANA) Uniform Resource Identifier (URI) Parameter Registry for the Session Initiation Protocol (SIP)G. Camarillo | Best Current Practice | December 2004 |
| 3968 | The Internet Assigned Number Authority (IANA) Header Field Parameter Registry for the Session Initiation Protocol (SIP)G. Camarillo | Best Current Practice | December 2004 |
| 3911 | The Session Initiation Protocol (SIP) "Join" HeaderR. Mahy, D. Petrie | Proposed Standard | October 2004 |
| 3903 | Session Initiation Protocol (SIP) Extension for Event State PublicationA. Niemi, Ed. | Proposed Standard | November 2004 |
| 3893 | Session Initiation Protocol (SIP) Authenticated Identity Body (AIB) FormatJ. Peterson | Proposed Standard | September 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 |
| 3853 | S/MIME Advanced Encryption Standard (AES) Requirement for the Session Initiation Protocol (SIP)J. Peterson | Proposed Standard | July 2004 |
| 3841 | Caller Preferences for the Session Initiation Protocol (SIP)J. Rosenberg, H. Schulzrinne, P. Kyzivat | Proposed Standard | August 2004 |
| 3840 | Indicating User Agent Capabilities in the Session Initiation Protocol (SIP)J. Rosenberg, H. Schulzrinne, P. Kyzivat | Proposed Standard | August 2004 |
| 3608 | Session Initiation Protocol (SIP) Extension Header Field for Service Route Discovery During RegistrationD. Willis, B. Hoeneisen | Proposed Standard | October 2003 |
| 3581 | An Extension to the Session Initiation Protocol (SIP) for Symmetric Response RoutingJ. Rosenberg, H. Schulzrinne | Proposed Standard | August 2003 |
| 3515 | The Session Initiation Protocol (SIP) Refer MethodR. Sparks | Proposed Standard | April 2003 |
| 3486 | Compressing the Session Initiation Protocol (SIP)G. Camarillo | Proposed Standard | February 2003 |
| 3428 | Session Initiation Protocol (SIP) Extension for Instant MessagingB. Campbell, Ed., J. Rosenberg, H. Schulzrinne, C. Huitema, D. Gurle | Proposed Standard | December 2002 |
| 3420 | Internet Media Type message/sipfragR. Sparks | Proposed Standard | November 2002 |
| 3361 | Dynamic Host Configuration Protocol (DHCP-for-IPv4) Option for Session Initiation Protocol (SIP) ServersH. Schulzrinne | Proposed Standard | August 2002 |
| 3329 | Security Mechanism Agreement for the Session Initiation Protocol (SIP)J. Arkko, V. Torvinen, G. Camarillo, A. Niemi, T. Haukka | Proposed Standard | January 2003 |
| 3327 | Session Initiation Protocol (SIP) Extension Header Field for Registering Non-Adjacent ContactsD. Willis, B. Hoeneisen | Proposed Standard | December 2002 |
| 3326 | The Reason Header Field for the Session Initiation Protocol (SIP)H. Schulzrinne, D. Oran, G. Camarillo | Proposed Standard | December 2002 |
| 3325 | Private Extensions to the Session Initiation Protocol (SIP) for Asserted Identity within Trusted NetworksC. Jennings, J. Peterson, M. Watson | Informational | December 2002 |
| 3323 | A Privacy Mechanism for the Session Initiation Protocol (SIP)J. Peterson | Proposed Standard | December 2002 |
| 3319 | Dynamic Host Configuration Protocol (DHCPv6) Options for Session Initiation Protocol (SIP) ServersH. Schulzrinne, B. Volz | Proposed Standard | July 2003 |
| 3313 | Private Session Initiation Protocol (SIP) Extensions for Media AuthorizationW. Marshall, Ed. | Informational | January 2003 |
| 3312 | Integration of Resource Management and Session Initiation Protocol (SIP)G. Camarillo, Ed., W. Marshall, Ed., J. Rosenberg | Proposed Standard | October 2002 |
| 3311 | The Session Initiation Protocol (SIP) UPDATE MethodJ. Rosenberg | Proposed Standard | October 2002 |
| 3310 | Hypertext Transfer Protocol (HTTP) Digest Authentication Using Authentication and Key Agreement (AKA)A. Niemi, J. Arkko, V. Torvinen | Informational | September 2002 |
| 3265 | Session Initiation Protocol (SIP)-Specific Event NotificationA. B. Roach · obsoleted by RFC 6665 | Proposed Standard | July 2002 |
| 3263 | Session Initiation Protocol (SIP): Locating SIP ServersJ. Rosenberg, H. Schulzrinne | Proposed Standard | July 2002 |
| 3262 | Reliability of Provisional Responses in Session Initiation Protocol (SIP)J. Rosenberg, H. Schulzrinne | Proposed Standard | July 2002 |
| 3261 | SIP: Session Initiation ProtocolJ. Rosenberg, H. Schulzrinne, G. Camarillo, A. Johnston, J. Peterson, R. Sparks, M. Handley, E. Schooler | Proposed Standard | July 2002 |
| 3204 | MIME media types for ISUP and QSIG ObjectsE. Zimmerer, J. Peterson, A. Vemuri, L. Ong, F. Audet, M. Watson, M. Zonoun | Proposed Standard | December 2001 |
| 2976 | The SIP INFO MethodS. Donovan · obsoleted by RFC 6086 | Proposed Standard | October 2000 |