| 9878 | Updates to Private Header (P-Header) Extension Usage in Session Initiation Protocol (SIP) Requests and ResponsesC. Holmberg, N. Biondic, G. Salgueiro, R. Jesske | Informational | November 2025 |
| 9143 | Negotiating Media Multiplexing Using the Session Description Protocol (SDP)C. Holmberg, H. Alvestrand, C. Jennings | Proposed Standard | February 2022 |
| 8898 | Third-Party Token-Based Authentication and Authorization for Session Initiation Protocol (SIP)R. Shekh-Yusef, C. Holmberg, V. Pascual | Proposed Standard | September 2020 |
| 8873 | Message Session Relay Protocol (MSRP) over Data ChannelsJM. Recio, Ed., C. Holmberg | Proposed Standard | January 2021 |
| 8865 | T.140 Real-Time Text Conversation over WebRTC Data ChannelsC. Holmberg, G. Hellström | Proposed Standard | January 2021 |
| 8863 | Interactive Connectivity Establishment Patiently Awaiting Connectivity (ICE PAC)C. Holmberg, J. Uberti | Proposed Standard | January 2021 |
| 8858 | Indicating Exclusive Support of RTP and RTP Control Protocol (RTCP) Multiplexing Using the Session Description Protocol (SDP)C. Holmberg | Proposed Standard | January 2021 |
| 8856 | Session Description Protocol (SDP) Format for Binary Floor Control Protocol (BFCP) StreamsG. Camarillo, T. Kristensen, C. Holmberg | Proposed Standard | January 2021 |
| 8850 | Controlling Multiple Streams for Telepresence (CLUE) Protocol Data ChannelC. Holmberg | Experimental | January 2021 |
| 8843 | Negotiating Media Multiplexing Using the Session Description Protocol (SDP)C. Holmberg, H. Alvestrand, C. Jennings · obsoleted by RFC 9143 | Proposed Standard | January 2021 |
| 8842 | Session Description Protocol (SDP) Offer/Answer Considerations for Datagram Transport Layer Security (DTLS) and Transport Layer Security (TLS)C. Holmberg, R. Shpount | Proposed Standard | January 2021 |
| 8841 | Session Description Protocol (SDP) Offer/Answer Procedures for Stream Control Transmission Protocol (SCTP) over Datagram Transport Layer Security (DTLS) TransportC. Holmberg, R. Shpount, S. Loreto, G. Camarillo | Proposed Standard | January 2021 |
| 8840 | A Session Initiation Protocol (SIP) Usage for Incremental Provisioning of Candidates for the Interactive Connectivity Establishment (Trickle ICE)E. Ivov, T. Stach, E. Marocco, C. Holmberg | Proposed Standard | January 2021 |
| 8839 | Session Description Protocol (SDP) Offer/Answer Procedures for Interactive Connectivity Establishment (ICE)M. Petit-Huguenin, S. Nandakumar, C. Holmberg, A. Keränen, R. Shpount | Proposed Standard | January 2021 |
| 8599 | Push Notification with the Session Initiation Protocol (SIP)C. Holmberg, M. Arnold | Proposed Standard | May 2019 |
| 8445 | Interactive Connectivity Establishment (ICE): A Protocol for Network Address Translator (NAT) TraversalA. Keranen, C. Holmberg, J. Rosenberg | Proposed Standard | July 2018 |
| 8262 | Content-ID Header Field in the Session Initiation Protocol (SIP)C. Holmberg, I. Sedlacek | Proposed Standard | October 2017 |
| 8122 | Connection-Oriented Media Transport over the Transport Layer Security (TLS) Protocol in the Session Description Protocol (SDP)J. Lennox, C. Holmberg | Proposed Standard | March 2017 |
| 8101 | IANA Registration of New Session Initiation Protocol (SIP) Resource-Priority Namespace for Mission Critical Push To Talk ServiceC. Holmberg, J. Axell | Informational | March 2017 |
| 8055 | Session Initiation Protocol (SIP) Via Header Field Parameter to Indicate Received RealmC. Holmberg, Y. Jiang | Proposed Standard | January 2017 |
| 8035 | Session Description Protocol (SDP) Offer/Answer Clarifications for RTP/RTCP MultiplexingC. Holmberg | Proposed Standard | November 2016 |
| 7976 | Updates to Private Header (P-Header) Extension Usage in Session Initiation Protocol (SIP) Requests and ResponsesC. Holmberg, N. Biondic, G. Salgueiro · obsoleted by RFC 9878 | Informational | September 2016 |
| 7913 | P-Access-Network-Info ABNF UpdateC. Holmberg | Informational | June 2016 |
| 7549 | 3GPP SIP URI Inter-Operator Traffic Leg ParameterC. Holmberg, J. Holm, R. Jesske, M. Dolly | Proposed Standard | May 2015 |
| 7478 | Web Real-Time Communication Use Cases and RequirementsC. Holmberg, S. Hakansson, G. Eriksson | Informational | March 2015 |
| 7345 | UDP Transport Layer (UDPTL) over Datagram Transport Layer Security (DTLS)C. Holmberg, I. Sedlacek, G. Salgueiro | Proposed Standard | 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 |
| 7163 | URN for Country-Specific Emergency ServicesC. Holmberg, I. Sedlacek | Proposed Standard | March 2014 |
| 7131 | Session Initiation Protocol (SIP) History-Info Header Call Flow ExamplesM. Barnes, F. Audet, S. Schubert, H. van Elburg, C. Holmberg | Informational | March 2014 |
| 7090 | Public Safety Answering Point (PSAP) CallbackH. Schulzrinne, H. Tschofenig, C. Holmberg, M. Patel | Proposed Standard | April 2014 |
| 7044 | An Extension to the Session Initiation Protocol (SIP) for Request History InformationM. Barnes, F. Audet, S. Schubert, J. van Elburg, C. Holmberg | Proposed Standard | February 2014 |
| 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 |
| 6714 | Connection Establishment for Media Anchoring (CEMA) for the Message Session Relay Protocol (MSRP)C. Holmberg, S. Blau, E. Burger | Proposed Standard | August 2012 |
| 6228 | Session Initiation Protocol (SIP) Response Code for Indication of Terminated DialogC. Holmberg | Proposed Standard | May 2011 |
| 6223 | Indication of Support for Keep-AliveC. Holmberg | Proposed Standard | April 2011 |
| 6141 | Re-INVITE and Target-Refresh Request Handling in the Session Initiation Protocol (SIP)G. Camarillo, Ed., C. Holmberg, Y. Gao | Proposed Standard | March 2011 |
| 6135 | An Alternative Connection Model for the Message Session Relay Protocol (MSRP)C. Holmberg, S. Blau | Proposed Standard | February 2011 |
| 6086 | Session Initiation Protocol (SIP) INFO Method and Package FrameworkC. Holmberg, E. Burger, H. Kaplan | Proposed Standard | January 2011 |