Session Initiation Protocol (SIP) INFO Method and Package Framework. - Christer Holmberg; Eric William Burger; Hadriel Kaplan (RFC, 2011)

An Alternative Connection Model for the Message Session Relay Protocol (MSRP). - Christer Holmberg; Staffan Blau (RFC, 2011)

Re-INVITE and Target-Refresh Request Handling in the Session Initiation Protocol (SIP). - Gonzalo Camarillo; Christer Holmberg; Yang Gao (RFC, 2011)

Indication of Support for Keep-Alive. - Christer Holmberg (RFC, 2011)

Session Initiation Protocol (SIP) Response Code for Indication of Terminated Dialog. - Christer Holmberg (RFC, 2011)

Connection Establishment for Media Anchoring (CEMA) for the Message Session Relay Protocol (MSRP). - Christer Holmberg; Staffan Blau; Eric William Burger (RFC, 2012)

Mechanism to Indicate Support of Features and Capabilities in the Session Initiation Protocol (SIP). - Christer Holmberg; Ivo Sedlacek; Hadriel Kaplan (RFC, 2012)

An Extension to the Session Initiation Protocol (SIP) for Request History Information. - Mary Barnes; François Audet; Shida Schubert; Hans Erik van Elburg; Christer Holmberg (RFC, 2014)

Session Initiation Protocol (SIP) History-Info Header Call Flow Examples. - Mary Barnes; François Audet; Shida Schubert; Hans Erik van Elburg; Christer Holmberg (RFC, 2014)

URN for Country-Specific Emergency Services. - Christer Holmberg; Ivo Sedlacek (RFC, 2014)

Public Safety Answering Point (PSAP) Callback. - Henning Schulzrinne; Hannes Tschofenig; Christer Holmberg; Milan Patel (RFC, 2014)

Private Header (P-Header) Extensions to the Session Initiation Protocol (SIP) for the 3GPP. - Roland Jesske; Keith Drage; Christer Holmberg (RFC, 2014)

UDP Transport Layer (UDPTL) over Datagram Transport Layer Security (DTLS). - Christer Holmberg; Ivo Sedlacek; Gonzalo Salgueiro (RFC, 2014)

Web Real-Time Communication Use Cases and Requirements. - Christer Holmberg; Stefan Hakansson; Goran A. P. Eriksson (RFC, 2015)

3GPP SIP URI Inter-Operator Traffic Leg Parameter. - Christer Holmberg; Jan Holm; Roland Jesske; Martin Dolly (RFC, 2015)

P-Access-Network-Info ABNF Update. - Christer Holmberg (RFC, 2016)

Updates to Private Header (P-Header) Extension Usage in Session Initiation Protocol (SIP) Requests and Responses. - Christer Holmberg; Nevenka Biondic; Gonzalo Salgueiro (RFC, 2016)

Session Description Protocol (SDP) Offer/Answer Clarifications for RTP/RTCP Multiplexing. - Christer Holmberg (RFC, 2016)

Session Initiation Protocol (SIP) Via Header Field Parameter to Indicate Received Realm. - Christer Holmberg; Yi Jiang (RFC, 2017)

IANA Registration of New Session Initiation Protocol (SIP) Resource-Priority Namespace for Mission Critical Push To Talk Service. - Christer Holmberg; Jörgen Axell (RFC, 2017)

Connection-Oriented Media Transport over the Transport Layer Security (TLS) Protocol in the Session Description Protocol (SDP). - Jonathan Lennox; Christer Holmberg (RFC, 2017)

Content-ID Header Field in the Session Initiation Protocol (SIP). - Christer Holmberg; Ivo Sedlacek (RFC, 2017)

Interactive Connectivity Establishment (ICE): A Protocol for Network Address Translator (NAT) Traversal. - Ari Keränen; Christer Holmberg; Jonathan D. Rosenberg (RFC, 2018)

Push Notification with the Session Initiation Protocol (SIP). - Christer Holmberg; Michael Arnold (RFC, 2019)

Third-Party Token-Based Authentication and Authorization for Session Initiation Protocol (SIP). - Rifaat Shekh-Yusef; Christer Holmberg; Víctor Pascual (RFC, 2020)

Session Description Protocol (SDP) Offer/Answer Procedures for Interactive Connectivity Establishment (ICE). - Marc Petit-Huguenin; Suhas Nandakumar; Christer Holmberg; Ari Keränen; Roman Shpount (RFC, 2021)

A Session Initiation Protocol (SIP) Usage for Incremental Provisioning of Candidates for the Interactive Connectivity Establishment (Trickle ICE). - Emil Ivov; Thomas Stach; Enrico Marocco; Christer Holmberg (RFC, 2021)

Session Description Protocol (SDP) Offer/Answer Procedures for Stream Control Transmission Protocol (SCTP) over Datagram Transport Layer Security (DTLS) Transport. - Christer Holmberg; Roman Shpount; Salvatore Loreto; Gonzalo Camarillo (RFC, 2021)

Session Description Protocol (SDP) Offer/Answer Considerations for Datagram Transport Layer Security (DTLS) and Transport Layer Security (TLS). - Christer Holmberg; Roman Shpount (RFC, 2021)

Negotiating Media Multiplexing Using the Session Description Protocol (SDP). - Christer Holmberg; Harald Tveit Alvestrand; Cullen Jennings (RFC, 2021)

Controlling Multiple Streams for Telepresence (CLUE) Protocol Data Channel. - Christer Holmberg (RFC, 2021)

Session Description Protocol (SDP) Format for Binary Floor Control Protocol (BFCP) Streams. - Gonzalo Camarillo; Tom Kristensen; Christer Holmberg (RFC, 2021)

Indicating Exclusive Support of RTP and RTP Control Protocol (RTCP) Multiplexing Using the Session Description Protocol (SDP). - Christer Holmberg (RFC, 2021)

Interactive Connectivity Establishment Patiently Awaiting Connectivity (ICE PAC). - Christer Holmberg; Justin Uberti (RFC, 2021)

T.140 Real-Time Text Conversation over WebRTC Data Channels. - Christer Holmberg; Gunnar Hellström (RFC, 2021)

Message Session Relay Protocol (MSRP) over Data Channels. - José M. Recio; Christer Holmberg (RFC, 2021)