| 8848 | Session Signaling for Controlling Multiple Streams for Telepresence (CLUE)R. Hanton, P. Kyzivat, L. Xiao, C. Groves | Experimental | January 2021 |
| 7866 | Session Recording ProtocolL. Portman, H. Lum, Ed., C. Eckel, A. Johnston, A. Hutton | Proposed Standard | May 2016 |
| 6913 | Indicating Fax over IP Capability in the Session Initiation Protocol (SIP)D. Hanes, G. Salgueiro, K. Fleming | Proposed Standard | March 2013 |
| 6809 | Mechanism to Indicate Support of Features and Capabilities in the Session Initiation Protocol (SIP)C. Holmberg, I. Sedlacek, H. Kaplan | Proposed Standard | November 2012 |
| 5688 | A Session Initiation Protocol (SIP) Media Feature Tag for MIME Application SubtypesJ. Rosenberg | Proposed Standard | January 2010 |
| 5626 | Managing Client-Initiated Connections in the Session Initiation Protocol (SIP)C. Jennings, Ed., R. Mahy, Ed., F. Audet, Ed. | Proposed Standard | October 2009 |
| 5259 | Internet Message Access Protocol - CONVERT ExtensionA. Melnikov, Ed., P. Coates, Ed. | Proposed Standard | July 2008 |
| 4569 | Internet Assigned Number Authority (IANA) Registration of the Message Media Feature TagG. Camarillo | Informational | July 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 |
| 4021 | Registration of Mail and MIME Header FieldsG. Klyne, J. Palme | Proposed Standard | March 2005 |
| 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 |
| 3297 | Content Negotiation for Messaging Services based on EmailG. Klyne, R. Iwazaki, D. Crocker | Proposed Standard | July 2002 |
| 2987 | Registration of Charset and Languages Media Features TagsP. Hoffman | Proposed Standard | November 2000 |
| 2938 | Identifying Composite Media FeaturesG. Klyne, L. Masinter | Proposed Standard | September 2000 |
| 2913 | MIME Content Types in Media Feature ExpressionsG. Klyne | Proposed Standard | September 2000 |
| 2912 | Indicating Media Features for MIME ContentG. Klyne | Proposed Standard | September 2000 |
| 2880 | Internet Fax T.30 Feature MappingL. McIntyre, G. Klyne | Informational | August 2000 |
| 2879 | Content Feature Schema for Internet Fax (V2)G. Klyne, L. McIntyre | Proposed Standard | August 2000 |
| 2534 | Media Features for Display, Print, and FaxL. Masinter, D. Wing, A. Mutz, K. Holtman | Proposed Standard | March 1999 |
| 2533 | A Syntax for Describing Media Feature SetsG. Klyne | Proposed Standard | March 1999 |
| 2531 | Content Feature Schema for Internet FaxG. Klyne, L. McIntyre · obsoleted by RFC 2879 | Proposed Standard | March 1999 |
| 2530 | Indicating Supported Media Features Using Extensions to DSN and MDND. Wing | Proposed Standard | March 1999 |