Colin Perkins

Standards Contributions

I'm an active participant in the Internet Engineering Task Force (IETF), working on standards related to real-time networked multimedia. My current focus is RTP-related standards, in particular the use of explicit congestion notification with RTP, and real-time conferencing in web browsers. I was previously co-chair of the IETF's Audio/Video Transport (AVT) and Multiparty Multimedia Session Control (MMUSIC) working groups. I serve on the IETF Transport Area Directorate, and have also contributed to the Moving Picture Experts Group of the International Standards Organisation.

I'm author of RTP: Audio and Video for the Internet (Addison-Wesley, 2003). This book describes protocols and algorithms for real-time multimedia over IP networks, combining standards and research experience to give a practical guide for those implementing telephony, conferencing and streaming media applications.

Useful links:

• IETF Internet-Draft Tracker
• IETF Internet-Draft Submission

RFCs

• Tom Phelan, Gorry Fairhurst, and Colin Perkins, DCCP-UDP: A Datagram Congestion Control Protocol UDP Encapsulation for NAT Traversal, Internet Engineering Task Force, November 2012, RFC 6773.
• Magnus Westerlund, Ingemar Johansson, Colin Perkins, Piers O'Hanlon, and Ken Carlberg, Explicit Congestion Notification (ECN) for RTP over UDP, Internet Engineering Task Force, August 2012, RFC 6679.
• Colin Perkins and Jean-Marc Valin, Guidelines for the use of Variable Bit Rate Audio with Secure RTP, Internet Engineering Task Force, March 2012, RFC 6562.
• Magnus Westerlund and Colin Perkins, IANA Registry for Interactive Connectivity Establishment (ICE) Options, Internet Engineering Task Force, July 2011, RFC 6336.
• Ali C. Begen, Colin Perkins, and Dan Wing, Guidelines for Choosing RTP Control Protocol (RTCP) Canonical Names (CNAMEs), Internet Engineering Task Force, April 2011, RFC 6222.
• Colin Perkins and Thomas Schierl, Rapid Synchronisation of RTP Flows, Internet Engineering Task Force, November 2010, RFC 6051.
• Jörg Ott and Colin Perkins, Guidelines for Extending the RTP Control Protocol (RTCP), Internet Engineering Task Force, September 2010, RFC 5968.
• Colin Perkins, RTP and the Datagram Congestion Control Protocol (DCCP), Internet Engineering Task Force, April 2010, RFC 5762.
• Colin Perkins and Magnus Westerlund, Multiplexing RTP Data and Control Packets on a Single Port, Internet Engineering Task Force, April 2010, RFC 5761.
• Mark Handley, Van Jacobson and Colin Perkins, SDP: Session Description Protocol, Internet Engineering Task Force, July 2006, RFC 4566.
• Colin Perkins, RTP Payload Format for Uncompressed Video: Additional Colour Sampling Modes, Internet Engineering Task Force, February 2006, RFC 4421.
• Ladan Gharai and Colin Perkins, RTP Payload Format for Uncompressed Video, Internet Engineering Task Force, September 2005, RFC 4175.
• Ladan Gharai, Colin Perkins, Gary Goncher, and Allison Mankin, RTP Payload Format for Society of Motion Picture and Television Engineers (SMPTE) 292M Video, Internet Engineering Task Force, March 2003, RFC 3497.
• Jörg Ott, Colin Perkins, and Dirk Kutscher, A Message Bus for Local Coordination, Internet Engineering Task Force, April 2002, RFC 3259.
• Colin Perkins, Jonathan Rosenberg, and Henning Schulzrinne, RTP Testing Strategies, Internet Engineering Task Force, August 2001, RFC 3158.
• Mark Handley, Colin Perkins, and Edmund Whelan, Session Announcement Protocol, Internet Engineering Task Force, October 2000, RFC 2974.
• Mark Handley and Colin Perkins, Guidelines for Writers of RTP Payload Format Specifications, Internet Engineering Task Force, December 1999, RFC 2736.
• Colin Perkins and Orion Hodson, Options for Repair of Streaming Media, Internet Engineering Task Force, June 1998, RFC 2354.
• Colin Perkins, Isidor Kouvelas, Orion Hodson, Vicky Hardman, Mark Handley, Jean-Chrysostome Bolot, Andres Vega-Garcia, and Sacha Fosse-Parisis, RTP Payload for Redundant Audio Data, Internet Engineering Task Force, September 1997, RFC 2198.

Internet Drafts

May 2013

• Magnus Westerlund and Colin Perkins, Options for Securing RTP Sessions, Internet Engineering Task Force, May 2013, Work in progress (draft-ietf-avtcore-rtp-security-options-03.txt).
• Colin Perkins and Magnus Westerlund, Securing the RTP Protocol Framework: Why RTP Does Not Mandate a Single Media Security Solution, Internet Engineering Task Force, May 2013, Work in progress (draft-ietf-avt-srtp-not-mandatory-13).

April 2013

• Jonathan Lennox, Magnus Westerlund, Qin Wu, and Colin Perkins, RTP Considerations for Endpoints Sending Multiple Media Streams, Internet Engineering Task Force, April 2013, Work in progress (draft-ietf-avtcore-rtp-multi-stream-00).
• Magnus Westerlund, Bo Burman, Colin Perkins, and Harald Alvestrand, Guidelines for using the Multiplexing Features of RTP, Internet Engineering Task Force, April 2013, Work in progress (draft-ietf-avtcore-multiplex-guidelines-00.txt).
• Ali Begen, Colin Perkins, Dan Wing, and Eric Rescorla, Guidelines for Choosing RTP Control Protocol (RTCP) Canonical Names (CNAMEs), Internet Engineering Task Force, April 2013, Work in progress (draft-ietf-avtcore-6222bis-03.txt).
• Ali Begen, Colin Perkins, Dan Wing, and Eric Rescorla, Guidelines for Choosing RTP Control Protocol (RTCP) Canonical Names (CNAMEs), Internet Engineering Task Force, April 2013, Work in progress (draft-ietf-avtcore-6222bis-02.txt).

March 2013

• Mark Handley, Van Jacobson, Colin Perkins, and Ali Begen, SDP: Session Description Protocol, Internet Engineering Task Force, March 2013, Work in progress (draft-ietf-mmusic-rfc4566bis-08.txt).
• Ali Begen and Colin Perkins, Duplicating RTP Streams, Internet Engineering Task Force, March 2013, Work in progress (draft-ietf-avtext-rtp-duplication-02.txt).
• Ali Begen, Colin Perkins, Dan Wing, and Eric Rescorla, Guidelines for Choosing RTP Control Protocol (RTCP) Canonical Names (CNAMEs), Internet Engineering Task Force, March 2013, Work in progress (draft-ietf-avtcore-6222bis-01.txt).

February 2013

• Magnus Westerlund and Colin Perkins, Multiple RTP Session on a Single Lower-Layer Transport, Internet Engineering Task Force, February 2013, Work in progress (draft-westerlund-avtcore-transport-multiplexing-05.txt).
• Magnus Westerlund, Bo Burman, Colin Perkins, and Harald Alvestrand, Guidelines for using the Multiplexing Features of RTP, Internet Engineering Task Force, February 2013, Work in progress (draft-westerlund-avtcore-multiplex-architecture-03.txt).
• Colin Perkins, On the Use of RTP Control Protocol (RTCP) Feedback for Unicast Multimedia Congestion Control, Internet Engineering Task Force, February 2013, Work in progress (draft-perkins-rmcat-rtp-cc-feedback-00).
• Jonathan Lennox, Magnus Westerlund, Qin Wu, and Colin Perkins, RTP Considerations for Endpoints Sending Multiple Media Streams, Internet Engineering Task Force, February 2013, Work in progress (draft-lennox-avtcore-rtp-multi-stream-02).
• Colin Perkins, Magnus Westerlund, and Jörg Ott, Web Real-Time Communication (WebRTC): Media Transport and Use of RTP, Internet Engineering Task Force, February 2013, Work in progress (draft-ietf-rtcweb-rtp-usage-06.txt).
• Mark Handley, Van Jacobson, Colin Perkins, and Ali Begen, SDP: Session Description Protocol, Internet Engineering Task Force, February 2013, Work in progress (draft-ietf-mmusic-rfc4566bis-07.txt).
• Magnus Westerlund and Colin Perkins, Options for Securing RTP Sessions, Internet Engineering Task Force, February 2013, Work in progress (draft-ietf-avtcore-rtp-security-options-02.txt).
• Colin Perkins and Varun Singh, Multimedia Congestion Control: Circuit Breakers for Unicast RTP Sessions, Internet Engineering Task Force, February 2013, Work in progress (draft-ietf-avtcore-rtp-circuit-breakers-02.txt).
• Magnus Westerlund, Colin Perkins, and Jonathan Lennox Multiple Media Types in an RTP Session, Internet Engineering Task Force, February 2013, Work in progress (draft-ietf-avtcore-multi-media-rtp-session-02).
• Colin Perkins and Magnus Westerlund, Securing the RTP Protocol Framework: Why RTP Does Not Mandate a Single Media Security Solution, Internet Engineering Task Force, February 2013, Work in progress (draft-ietf-avt-srtp-not-mandatory-12).

December 2012

• Ali Begen and Colin Perkins, Duplicating RTP Streams, Internet Engineering Task Force, December 2012, Work in progress (draft-ietf-avtext-rtp-duplication-01.txt).

November 2012

• Colin Perkins and Magnus Westerlund, Securing the RTP Protocol Framework: Why RTP Does Not Mandate a Single Media Security Solution, Internet Engineering Task Force, November 2012, Work in progress (draft-ietf-avt-srtp-not-mandatory-11).

October 2012

• Magnus Westerlund and Colin Perkins, Multiple RTP Session on a Single Lower-Layer Transport, Internet Engineering Task Force, October 2012, Work in progress (draft-westerlund-avtcore-transport-multiplexing-04.txt).
• Colin Perkins, Magnus Westerlund, and Jörg Ott, Web Real-Time Communication (WebRTC): Media Transport and Use of RTP, Internet Engineering Task Force, October 2012, Work in progress (draft-ietf-rtcweb-rtp-usage-05.txt).
• Magnus Westerlund and Colin Perkins, Options for Securing RTP Sessions, Internet Engineering Task Force, October 2012, Work in progress (draft-ietf-avtcore-rtp-security-options-01.txt).
• Colin Perkins and Varun Singh, RTP Congestion Control: Circuit Breakers for Unicast Sessions, Internet Engineering Task Force, October 2012, Work in progress (draft-ietf-avtcore-rtp-circuit-breakers-01.txt).
• Colin Perkins and Varun Singh, RTP Congestion Control: Circuit Breakers for Unicast Sessions, Internet Engineering Task Force, October 2012, Work in progress (draft-ietf-avtcore-rtp-circuit-breakers-00.txt).
• Magnus Westerlund, Colin Perkins, and Jonathan Lennox Multiple Media Types in an RTP Session, Internet Engineering Task Force, October 2012, Work in progress (draft-ietf-avtcore-multi-media-rtp-session-01).
• Magnus Westerlund, Colin Perkins, and Jonathan Lennox Multiple Media Types in an RTP Session, Internet Engineering Task Force, October 2012, Work in progress (draft-ietf-avtcore-multi-media-rtp-session-00).
• Colin Perkins and Magnus Westerlund, Securing the RTP Protocol Framework: Why RTP Does Not Mandate a Single Media Security Solution, Internet Engineering Task Force, October 2012, Work in progress (draft-ietf-avt-srtp-not-mandatory-10).

August 2012

• Mark Handley, Van Jacobson, Colin Perkins, and Ali Begen, SDP: Session Description Protocol, Internet Engineering Task Force, August 2012, Work in progress (draft-ietf-mmusic-rfc4566bis-06.txt).

July 2012

• Magnus Westerlund and Colin Perkins, Multiple RTP Session on a Single Lower-Layer Transport, Internet Engineering Task Force, July 2012, Work in progress (draft-westerlund-avtcore-transport-multiplexing-03.txt).
• Magnus Westerlund, Bo Burman, Colin Perkins, and Harald Alvestrand, Guidelines for using the Multiplexing Features of RTP, Internet Engineering Task Force, July 2012, Work in progress (draft-westerlund-avtcore-multiplex-architecture-02.txt).
• Magnus Westerlund, Colin Perkins, and Jonathan Lennox Multiple Media Types in an RTP Session, Internet Engineering Task Force, July 2012, Work in progress (draft-westerlund-avtcore-multi-media-rtp-session-00).
• Colin Perkins and Varun Singh, RTP Congestion Control: Circuit Breakers for Unicast Sessions, Internet Engineering Task Force, July 2012, Work in progress (draft-perkins-avtcore-rtp-circuit-breakers-01.txt).
• Colin Perkins, Magnus Westerlund, and Jörg Ott, Web Real-Time Communication (WebRTC): Media Transport and Use of RTP, Internet Engineering Task Force, July 2012, Work in progress (draft-ietf-rtcweb-rtp-usage-04.txt).
• Ali Begen and Colin Perkins, Duplicating RTP Streams, Internet Engineering Task Force, July 2012, Work in progress (draft-ietf-avtext-rtp-duplication-00.txt).
• Magnus Westerlund and Colin Perkins, Options for Securing RTP Sessions, Internet Engineering Task Force, July 2012, Work in progress (draft-ietf-avtcore-rtp-security-options-00.txt).
• Colin Perkins and Magnus Westerlund, Why RTP Does Not Mandate a Single Security Mechanism, Internet Engineering Task Force, July 2012, Work in progress (draft-ietf-avt-srtp-not-mandatory-09).

June 2012

• Colin Perkins, Magnus Westerlund, and Jörg Ott, Web Real-Time Communication (WebRTC): Media Transport and Use of RTP, Internet Engineering Task Force, June 2012, Work in progress (draft-ietf-rtcweb-rtp-usage-03.txt).
• Tom Phelan, Gorry Fairhurst, and Colin Perkins, Datagram Congestion Control Protocol (DCCP) Encapsulation for NAT Traversal (DCCP-UDP), Internet Engineering Task Force, June 2012, Work in progress (draft-ietf-dccp-udpencap-11.txt).

May 2012

• Magnus Westerlund, Ingemar Johansson, Colin Perkins, Piers O'Hanlon, and Ken Carlberg, Explicit Congestion Notification (ECN) for RTP over UDP, Internet Engineering Task Force, May 2012, Work in progress (draft-ietf-avtcore-ecn-for-rtp-08.txt).

March 2012

• Magnus Westerlund and Colin Perkins, Multiple RTP Session on a Single Lower-Layer Transport, Internet Engineering Task Force, March 2012, Work in progress (draft-westerlund-avtcore-transport-multiplexing-02.txt).
• Magnus Westerlund, Bo Burman, and Colin Perkins, RTP Multiplexing Architecture, Internet Engineering Task Force, March 2012, Work in progress (draft-westerlund-avtcore-multiplex-architecture-01.txt).
• Pasi Sarolahti, Jörg Ott, and Colin Perkins, TCP Segment Caching, Internet Engineering Task Force, March 2012, Work in progress (draft-sarolahti-irtf-catcp-00.txt).
• Colin Perkins and Varun Singh, RTP Congestion Control: Circuit Breakers for Unicast Sessions, Internet Engineering Task Force, March 2012, Work in progress (draft-perkins-avtcore-rtp-circuit-breakers-00.txt).
• Colin Perkins, Magnus Westerlund, and Jörg Ott, Web Real-Time Communication (WebRTC): Media Transport and Use of RTP, Internet Engineering Task Force, March 2012, Work in progress (draft-ietf-rtcweb-rtp-usage-02.txt).
• Tom Phelan, Gorry Fairhurst, and Colin Perkins, Datagram Congestion Control Protocol (DCCP) Encapsulation for NAT Traversal (DCCP-UDP), Internet Engineering Task Force, March 2012, Work in progress (draft-ietf-dccp-udpencap-10.txt).
• Magnus Westerlund, Ingemar Johansson, Colin Perkins, Piers O'Hanlon, and Ken Carlberg, Explicit Congestion Notification (ECN) for RTP over UDP, Internet Engineering Task Force, March 2012, Work in progress (draft-ietf-avtcore-ecn-for-rtp-07.txt).
• Ali Begen and Colin Perkins, Duplicating RTP Streams, Internet Engineering Task Force, March 2012, Work in progress (draft-begen-avtcore-rtp-duplication-01.txt).

February 2012

• Mark Handley, Van Jacobson, Colin Perkins, and Ali Begen, SDP: Session Description Protocol, Internet Engineering Task Force, February 2012, Work in progress (draft-ietf-mmusic-rfc4566bis-05.txt).
• Magnus Westerlund, Ingemar Johansson, Colin Perkins, Piers O'Hanlon, and Ken Carlberg, Explicit Congestion Notification (ECN) for RTP over UDP, Internet Engineering Task Force, February 2012, Work in progress (draft-ietf-avtcore-ecn-for-rtp-06.txt).

December 2011

• Colin Perkins and Jean-Marc Valin, Guidelines for the use of Variable Bit Rate Audio with Secure RTP, Internet Engineering Task Force, December 2011, Work in progress (draft-ietf-avtcore-srtp-vbr-audio-04.txt).

October 2011

• Magnus Westerlund and Colin Perkins, Multiple RTP Session on a Single Lower-Layer Transport, Internet Engineering Task Force, October 2011, Work in progress (draft-westerlund-avtcore-transport-multiplexing-01.txt).
• Magnus Westerlund, Bo Burman, and Colin Perkins, RTP Multiplexing Architecture, Internet Engineering Task Force, October 2011, Work in progress (draft-westerlund-avtcore-multiplex-architecture-00.txt).
• Colin Perkins, Magnus Westerlund, and Jörg Ott, Web Real-Time Communication (WebRTC): Media Transport and Use of RTP, Internet Engineering Task Force, October 2011, Work in progress (draft-ietf-rtcweb-rtp-usage-01.txt).
• Mark Handley, Van Jacobson, Colin Perkins, and Ali Begen, SDP: Session Description Protocol, Internet Engineering Task Force, October 2011, Work in progress (draft-ietf-mmusic-rfc4566bis-04.txt).
• Magnus Westerlund, Ingemar Johansson, Colin Perkins, Piers O'Hanlon, and Ken Carlberg, Explicit Congestion Notification (ECN) for RTP over UDP, Internet Engineering Task Force, October 2011, Work in progress (draft-ietf-avtcore-ecn-for-rtp-05.txt).
• Colin Perkins and Magnus Westerlund, Why RTP Does Not Mandate a Single Security Mechanism, Internet Engineering Task Force, October 2011, Work in progress (draft-ietf-avt-srtp-not-mandatory-08).
• Ali Begen and Colin Perkins, Duplicating RTP Streams, Internet Engineering Task Force, October 2011, Work in progress (draft-begen-avtcore-rtp-duplication-00.txt).

September 2011

• Colin Perkins, Magnus Westerlund, and Jörg Ott, RTP Requirements for RTC-Web, Internet Engineering Task Force, September 2011, Work in progress (draft-ietf-rtcweb-rtp-usage-00.txt).
• Ladan Gharai and Colin Perkins, RTP with TCP Friendly Rate Control, Internet Engineering Task Force, September 2011, Work in progress (draft-gharai-avtcore-rtp-tfrc-01.txt).

August 2011

• Colin Perkins, Magnus Westerlund, and Jörg Ott, RTP Requirements for RTC-Web, Internet Engineering Task Force, August 2011, Work in progress (draft-perkins-rtcweb-rtp-usage-03.txt).

July 2011

• Colin Perkins, Magnus Westerlund, and Jörg Ott, RTP Requirements for RTC-Web, Internet Engineering Task Force, July 2011, Work in progress (draft-perkins-rtcweb-rtp-usage-02.txt).
• Tom Phelan, Gorry Fairhurst, and Colin Perkins, Datagram Congestion Control Protocol (DCCP) Encapsulation for NAT Traversal (DCCP-UDP), Internet Engineering Task Force, July 2011, Work in progress (draft-ietf-dccp-udpencap-09.txt).
• Colin Perkins and Jean-Marc Valin, Guidelines for the use of Variable Bit Rate Audio with Secure RTP, Internet Engineering Task Force, July 2011, Work in progress (draft-ietf-avtcore-srtp-vbr-audio-03.txt).
• Magnus Westerlund, Ingemar Johansson, Colin Perkins, Piers O'Hanlon, and Ken Carlberg, Explicit Congestion Notification (ECN) for RTP over UDP, Internet Engineering Task Force, July 2011, Work in progress (draft-ietf-avtcore-ecn-for-rtp-04.txt).
• Magnus Westerlund, Ingemar Johansson, Colin Perkins, Piers O'Hanlon, and Ken Carlberg, Explicit Congestion Notification (ECN) for RTP over UDP, Internet Engineering Task Force, July 2011, Work in progress (draft-ietf-avtcore-ecn-for-rtp-03.txt).

June 2011

• Colin Perkins, Magnus Westerlund, and Jörg Ott, RTP Requirements for RTC-Web, Internet Engineering Task Force, June 2011, Work in progress (draft-perkins-rtcweb-rtp-usage-01.txt).

May 2011

• Mark Handley, Van Jacobson, Colin Perkins, and Ali Begen, SDP: Session Description Protocol, Internet Engineering Task Force, May 2011, Work in progress (draft-ietf-mmusic-rfc4566bis-03.txt).
• Magnus Westerlund and Colin Perkins, IANA Registry for Interactive Connectivity Establishment (ICE) Options, Internet Engineering Task Force, May 2011, Work in progress (draft-ietf-mmusic-ice-options-registry-02.txt).
• Tom Phelan, Gorry Fairhurst, and Colin Perkins, Datagram Congestion Control Protocol (DCCP) Encapsulation for NAT Traversal (DCCP-UDP), Internet Engineering Task Force, May 2011, Work in progress (draft-ietf-dccp-udpencap-08.txt).
• Magnus Westerlund, Ingemar Johansson, Colin Perkins, Piers O'Hanlon, and Ken Carlberg, Explicit Congestion Notification (ECN) for RTP over UDP, Internet Engineering Task Force, May 2011, Work in progress (draft-ietf-avtcore-ecn-for-rtp-02.txt).

April 2011

• Colin Perkins and Jean-Marc Valin, Guidelines for the use of Variable Bit Rate Audio with Secure RTP, Internet Engineering Task Force, April 2011, Work in progress (draft-ietf-avtcore-srtp-vbr-audio-02.txt).
• Colin Perkins and Jean-Marc Valin, Guidelines for the use of Variable Bit Rate Audio with Secure RTP, Internet Engineering Task Force, April 2011, Work in progress (draft-ietf-avtcore-srtp-vbr-audio-01.txt).

March 2011

• Colin Perkins, Magnus Westerlund, and Jörg Ott, RTP Requirements for RTC-Web, Internet Engineering Task Force, March 2011, Work in progress (draft-perkins-rtcweb-rtp-usage-00.txt).
• Magnus Westerlund and Colin Perkins, IANA Registry for Interactive Connectivity Establishment (ICE) Options, Internet Engineering Task Force, March 2011, Work in progress (draft-ietf-mmusic-ice-options-registry-01.txt).
• Magnus Westerlund, Ingemar Johansson, Colin Perkins, Piers O'Hanlon, and Ken Carlberg, Explicit Congestion Notification (ECN) for RTP over UDP, Internet Engineering Task Force, March 2011, Work in progress (draft-ietf-avtcore-ecn-for-rtp-01.txt).
• Ladan Gharai and Colin Perkins, RTP with TCP Friendly Rate Control, Internet Engineering Task Force, March 2011, Work in progress (draft-gharai-avtcore-rtp-tfrc-00.txt).

January 2011

• Magnus Westerlund and Colin Perkins, IANA Registry for Interactive Connectivity Establishment (ICE) Options, Internet Engineering Task Force, January 2011, Work in progress (draft-ietf-mmusic-ice-options-registry-00.txt).
• Colin Perkins and Jean-Marc Valin, Guidelines for the use of Variable Bit Rate Audio with Secure RTP, Internet Engineering Task Force, January 2011, Work in progress (draft-ietf-avtcore-srtp-vbr-audio-00.txt).
• Magnus Westerlund, Ingemar Johansson, Colin Perkins, Piers O'Hanlon, and Ken Carlberg, Explicit Congestion Notification (ECN) for RTP over UDP, Internet Engineering Task Force, January 2011, Work in progress (draft-ietf-avtcore-ecn-for-rtp-00.txt).
• Ali C. Begen, Colin Perkins, and Dan Wing, Guidelines for Choosing RTP Control Protocol (RTCP) Canonical Names (CNAMEs), Internet Engineering Task Force, January 2011, Work in progress (draft-ietf-avt-rtp-cnames-05.txt).
• Ali C. Begen, Colin Perkins, and Dan Wing, Guidelines for Choosing RTP Control Protocol (RTCP) Canonical Names (CNAMEs), Internet Engineering Task Force, January 2011, Work in progress (draft-ietf-avt-rtp-cnames-04.txt).

December 2010

• Colin Perkins and Jean-Marc Valin, Guidelines for the use of Variable Bit Rate Audio with Secure RTP, Internet Engineering Task Force, December 2010, Work in progress (draft-perkins-avt-srtp-vbr-audio-05.txt).
• Ali C. Begen, Colin Perkins, and Dan Wing, Guidelines for Choosing RTP Control Protocol (RTCP) Canonical Names (CNAMEs), Internet Engineering Task Force, December 2010, Work in progress (draft-ietf-avt-rtp-cnames-03.txt).

November 2010

• Magnus Westerlund and Colin Perkins, IANA Registry for Interactive Connectivity Establishment (ICE) Options, Internet Engineering Task Force, November 2010, Work in progress (draft-westerlund-mmusic-ice-options-registry-01.txt).
• Magnus Westerlund and Colin Perkins, IANA Registry for Interactive Connectivity Establishment (ICE) Options, Internet Engineering Task Force, November 2010, Work in progress (draft-westerlund-mmusic-ice-options-registry-00.txt).
• Ali C. Begen, Colin Perkins, and Dan Wing, Guidelines for Choosing RTP Control Protocol (RTCP) Canonical Names (CNAMEs), Internet Engineering Task Force, November 2010, Work in progress (draft-ietf-avt-rtp-cnames-02.txt).

October 2010

• Magnus Westerlund, Ingemar Johansson, Colin Perkins, Piers O'Hanlon, and Ken Carlberg, Explicit Congestion Notification (ECN) for RTP over UDP, Internet Engineering Task Force, October 2010, Work in progress (draft-ietf-avt-ecn-for-rtp-03.txt).

August 2010

• Ali C. Begen, Colin Perkins, and Dan Wing, Guidelines for Choosing RTP Control Protocol (RTCP) Canonical Names (CNAMEs), Internet Engineering Task Force, August 2010, Work in progress (draft-ietf-avt-rtp-cnames-01.txt).

July 2010

• Colin Perkins and Jean-Marc Valin, Guidelines for the use of Variable Bit Rate Audio with Secure RTP, Internet Engineering Task Force, July 2010, Work in progress (draft-perkins-avt-srtp-vbr-audio-04.txt).
• Colin Perkins and Magnus Westerlund, Why RTP Does Not Mandate a Single Security Mechanism, Internet Engineering Task Force, July 2010, Work in progress (draft-ietf-avt-srtp-not-mandatory-07).
• Colin Perkins and Thomas Schierl, Rapid Synchronisation of RTP Flows, Internet Engineering Task Force, July 2010, Work in progress (draft-ietf-avt-rapid-rtp-sync-12.txt).
• Magnus Westerlund, Ingemar Johansson, Colin Perkins, Piers O'Hanlon, and Ken Carlberg, Explicit Congestion Notification (ECN) for RTP over UDP, Internet Engineering Task Force, July 2010, Work in progress (draft-ietf-avt-ecn-for-rtp-02.txt).

June 2010

• Colin Perkins and Magnus Westerlund, Why RTP Does Not Mandate a Single Security Mechanism, Internet Engineering Task Force, June 2010, Work in progress (draft-ietf-avt-srtp-not-mandatory-06).
• Ali C. Begen, Colin Perkins, and Dan Wing, Guidelines for Choosing RTP Control Protocol (RTCP) Canonical Names (CNAMEs), Internet Engineering Task Force, June 2010, Work in progress (draft-ietf-avt-rtp-cnames-00.txt).

May 2010

• Jörg Ott and Colin Perkins, Guidelines for Extending the RTP Control Protocol (RTCP), Internet Engineering Task Force, May 2010, Work in progress (draft-ietf-avt-rtcp-guidelines-04).
• Colin Perkins and Thomas Schierl, Rapid Synchronisation of RTP Flows, Internet Engineering Task Force, May 2010, Work in progress (draft-ietf-avt-rapid-rtp-sync-11.txt).
• Colin Perkins and Thomas Schierl, Rapid Synchronisation of RTP Flows, Internet Engineering Task Force, May 2010, Work in progress (draft-ietf-avt-rapid-rtp-sync-10.txt).
• Ali C. Begen, Colin Perkins, and Dan Wing, Guidelines for Choosing RTP Control Protocol (RTCP) Canonical Names (CNAMEs), Internet Engineering Task Force, May 2010, Work in progress (draft-begen-avt-rtp-cnames-02.txt).
• Ali C. Begen and Colin Perkins, Guidelines for Choosing RTP Control Protocol (RTCP) Canonical Names (CNAMEs), Internet Engineering Task Force, May 2010, Work in progress (draft-begen-avt-rtp-cnames-01.txt).

April 2010

• Ali C. Begen and Colin Perkins, Guidelines for Choosing an RTP Control Protocol (RTCP) Canonical Name (CNAME) for Hosts with Private IP Addresses, Internet Engineering Task Force, April 2010, Work in progress (draft-begen-avt-rtp-cnames-00.txt).

March 2010

• Colin Perkins and Jean-Marc Valin, Guidelines for the use of Variable Bit Rate Audio with Secure RTP, Internet Engineering Task Force, March 2010, Work in progress (draft-perkins-avt-srtp-vbr-audio-03.txt).
• Magnus Westerlund, Ingemar Johansson, Colin Perkins, Piers O'Hanlon, and Ken Carlberg, Explicit Congestion Notification (ECN) for RTP over UDP, Internet Engineering Task Force, March 2010, Work in progress (draft-ietf-avt-ecn-for-rtp-01.txt).

February 2010

• Jörg Ott and Colin Perkins, Guidelines for Extending the RTP Control Protocol (RTCP), Internet Engineering Task Force, February 2010, Work in progress (draft-ietf-avt-rtcp-guidelines-03).
• Magnus Westerlund, Ingemar Johansson, Colin Perkins, Piers O'Hanlon, and Ken Carlberg, Explicit Congestion Notification (ECN) for RTP over UDP, Internet Engineering Task Force, February 2010, Work in progress (draft-ietf-avt-ecn-for-rtp-00.txt).

January 2010

• Colin Perkins and Magnus Westerlund, Why RTP Does Not Mandate a Single Security Mechanism, Internet Engineering Task Force, January 2010, Work in progress (draft-ietf-avt-srtp-not-mandatory-05).
• Jörg Ott and Colin Perkins, Guidelines for Extending the RTP Control Protocol (RTCP), Internet Engineering Task Force, January 2010, Work in progress (draft-ietf-avt-rtcp-guidelines-02).
• Colin Perkins and Thomas Schierl, Rapid Synchronisation of RTP Flows, Internet Engineering Task Force, January 2010, Work in progress (draft-ietf-avt-rapid-rtp-sync-09.txt).

December 2009

• Colin Perkins and Magnus Westerlund, Why RTP Does Not Mandate a Single Security Mechanism, Internet Engineering Task Force, December 2009, Work in progress (draft-ietf-avt-srtp-not-mandatory-04).
• Colin Perkins and Thomas Schierl, Rapid Synchronisation of RTP Flows, Internet Engineering Task Force, December 2009, Work in progress (draft-ietf-avt-rapid-rtp-sync-08.txt).

November 2009

• Colin Perkins and Thomas Schierl, Rapid Synchronisation of RTP Flows, Internet Engineering Task Force, November 2009, Work in progress (draft-ietf-avt-rapid-rtp-sync-07.txt).

October 2009

• Magnus Westerlund, Ingemar Johansson, Colin Perkins, Piers O'Hanlon, and Ken Carlberg, Explicit Congestion Notification (ECN) for RTP over UDP, Internet Engineering Task Force, October 2009, Work in progress (draft-westerlund-avt-ecn-for-rtp-02.txt).
• Magnus Westerlund, Ingemar Johansson, Colin Perkins, Piers O'Hanlon, and Ken Carlberg, Explicit Congestion Notification (ECN) for RTP over UDP, Internet Engineering Task Force, October 2009, Work in progress (draft-westerlund-avt-ecn-for-rtp-01.txt).
• Colin Perkins, Guidelines for the use of Variable Bit Rate Audio with Secure RTP, Internet Engineering Task Force, October 2009, Work in progress (draft-perkins-avt-srtp-vbr-audio-02.txt).
• Colin Perkins and Thomas Schierl, Rapid Synchronisation of RTP Flows, Internet Engineering Task Force, October 2009, Work in progress (draft-ietf-avt-rapid-rtp-sync-06.txt).

July 2009

• Magnus Westerlund, Ingemar Johansson, and Colin Perkins Explicit Congestion Notification (ECN) for RTP over UDP, Internet Engineering Task Force, July 2009, Work in progress (draft-westerlund-avt-ecn-for-rtp-00.txt).
• Colin Perkins, Guidelines for the use of Variable Bit Rate Audio with Secure RTP, Internet Engineering Task Force, July 2009, Work in progress (draft-perkins-avt-srtp-vbr-audio-01.txt).
• Colin Perkins and Magnus Westerlund, Why RTP Does Not Mandate a Single Security Mechanism, Internet Engineering Task Force, July 2009, Work in progress (draft-ietf-avt-srtp-not-mandatory-03).
• Colin Perkins and Thomas Schierl, Rapid Synchronisation of RTP Flows, Internet Engineering Task Force, July 2009, Work in progress (draft-ietf-avt-rapid-rtp-sync-05.txt).
• Colin Perkins and Thomas Schierl, Rapid Synchronisation of RTP Flows, Internet Engineering Task Force, July 2009, Work in progress (draft-ietf-avt-rapid-rtp-sync-04.txt).

June 2009

• Colin Perkins and Thomas Schierl, Rapid Synchronisation of RTP Flows, Internet Engineering Task Force, June 2009, Work in progress (draft-ietf-avt-rapid-rtp-sync-03.txt).
• Colin Perkins and Thomas Schierl, Rapid Synchronisation of RTP Flows, Internet Engineering Task Force, June 2009, Work in progress (draft-ietf-avt-rapid-rtp-sync-02.txt).

May 2009

• Colin Perkins and Thomas Schierl, Rapid Synchronisation of RTP Flows, Internet Engineering Task Force, May 2009, Work in progress (draft-ietf-avt-rapid-rtp-sync-01.txt).

April 2009

• Colin Perkins and Thomas Schierl, Rapid Synchronisation of RTP Flows, Internet Engineering Task Force, April 2009, Work in progress (draft-ietf-avt-rapid-rtp-sync-00.txt).

March 2009

• Colin Perkins, Guidelines for the use of Variable Bit Rate Audio with Secure RTP, Internet Engineering Task Force, March 2009, Work in progress (draft-perkins-avt-srtp-vbr-audio-00.txt).
• Colin Perkins and Thomas Schierl, Rapid Synchronisation of RTP Flows, Internet Engineering Task Force, March 2009, Work in progress (draft-perkins-avt-rapid-rtp-sync-03.txt).
• Mark Handley, Van Jacobson, and Colin Perkins, SDP: Session Description Protocol, Internet Engineering Task Force, March 2009, Work in progress (draft-ietf-mmusic-rfc4566bis-02.txt).
• Colin Perkins and Magnus Westerlund, Why RTP Does Not Mandate a Single Security Mechanism, Internet Engineering Task Force, March 2009, Work in progress (draft-ietf-avt-srtp-not-mandatory-02).
• Jörg Ott and Colin Perkins, Guidelines for Extending the RTP Control Protocol (RTCP), Internet Engineering Task Force, March 2009, Work in progress (draft-ietf-avt-rtcp-guidelines-01).

February 2009

• Colin Perkins and Thomas Schierl, Rapid Synchronisation of RTP Flows, Internet Engineering Task Force, February 2009, Work in progress (draft-perkins-avt-rapid-rtp-sync-02.txt).

January 2009

• Colin Perkins, Rapid Synchronisation of RTP Flows, Internet Engineering Task Force, January 2009, Work in progress (draft-perkins-avt-rapid-rtp-sync-01.txt).

November 2008

• Colin Perkins and Magnus Westerlund, Why RTP Does Not Mandate a Single Security Mechanism, Internet Engineering Task Force, November 2008, Work in progress (draft-ietf-avt-srtp-not-mandatory-01).

October 2008

• Colin Perkins Rapid Synchronisation of RTP Flows, Internet Engineering Task Force, October 2008, Work in progress (draft-perkins-avt-rapid-rtp-sync-00.txt).

July 2008

• Colin Perkins and Magnus Westerlund, Why RTP Does Not Mandate a Single Security Mechanism, Internet Engineering Task Force, July 2008, Work in progress (draft-perkins-avt-srtp-not-mandatory-01).
• Colin Perkins and Magnus Westerlund, Why RTP Does Not Mandate a Single Security Mechanism, Internet Engineering Task Force, July 2008, Work in progress (draft-ietf-avt-srtp-not-mandatory-00).
• Jörg Ott and Colin Perkins, Guidelines for Extending the RTP Control Protocol (RTCP), Internet Engineering Task Force, July 2008, Work in progress (draft-ietf-avt-rtcp-guidelines-00).

June 2008

• Jörg Ott and Colin Perkins, Guidelines for Extending the RTP Control Protocol (RTCP), Internet Engineering Task Force, June 2008, Work in progress (draft-ott-avt-rtcp-guidelines-01).
• Mark Handley, Van Jacobson, and Colin Perkins, SDP: Session Description Protocol, Internet Engineering Task Force, June 2008, Work in progress (draft-ietf-mmusic-rfc4566bis-01).

February 2008

• Colin Perkins and Magnus Westerlund, Why RTP Does Not Mandate a Single Security Mechanism, Internet Engineering Task Force, February 2008, Work in progress (draft-perkins-avt-srtp-not-mandatory-00).
• Jörg Ott and Colin Perkins, Guidelines for Extending the RTP Control Protocol (RTCP), Internet Engineering Task Force, February 2008, Work in progress (draft-ott-avt-rtcp-guidelines-00).

December 2007

• Mark Handley, Van Jacobson, and Colin Perkins, SDP: Session Description Protocol, Internet Engineering Task Force, December 2007, Work in progress (draft-ietf-mmusic-rfc4566bis-00).

August 2007

• Colin Perkins and Magnus Westerlund, Multiplexing RTP Data and Control Packets on a Single Port, Internet Engineering Task Force, August 2007, Work in progress (draft-ietf-avt-rtp-and-rtcp-mux-07).

July 2007

• Colin Perkins and Magnus Westerlund, Multiplexing RTP Data and Control Packets on a Single Port, Internet Engineering Task Force, July 2007, Work in progress (draft-ietf-avt-rtp-and-rtcp-mux-06).

June 2007

• Colin Perkins, RTP and the Datagram Congestion Control Protocol (DCCP), Internet Engineering Task Force, June 2007, Work in progress (draft-ietf-dccp-rtp-07).

May 2007

• Colin Perkins, RTP and the Datagram Congestion Control Protocol (DCCP), Internet Engineering Task Force, May 2007, Work in progress (draft-ietf-dccp-rtp-06).
• Colin Perkins and Magnus Westerlund, Multiplexing RTP Data and Control Packets on a Single Port, Internet Engineering Task Force, May 2007, Work in progress (draft-ietf-avt-rtp-and-rtcp-mux-05).

March 2007

• Colin Perkins, RTP and the Datagram Congestion Control Protocol (DCCP), Internet Engineering Task Force, March 2007, Work in progress (draft-ietf-dccp-rtp-05).
• Colin Perkins, RTP and the Datagram Congestion Control Protocol (DCCP), Internet Engineering Task Force, March 2007, Work in progress (draft-ietf-dccp-rtp-04).
• Colin Perkins and Magnus Westerlund, Multiplexing RTP Data and Control Packets on a Single Port, Internet Engineering Task Force, March 2007, Work in progress (draft-ietf-avt-rtp-and-rtcp-mux-04).

December 2006

• Colin Perkins and Magnus Westerlund, Multiplexing RTP Data and Control Packets on a Single Port, Internet Engineering Task Force, December 2006, Work in progress (draft-ietf-avt-rtp-and-rtcp-mux-03).

November 2006

• Colin Perkins, RTP and the Datagram Congestion Control Protocol (DCCP), Internet Engineering Task Force, November 2006, Work in progress (draft-ietf-dccp-rtp-03).
• Colin Perkins, RTP and the Datagram Congestion Control Protocol (DCCP), Internet Engineering Task Force, November 2006, Work in progress (draft-ietf-dccp-rtp-02).
• Colin Perkins and Magnus Westerlund, Multiplexing RTP Data and Control Packets on a Single Port, Internet Engineering Task Force, November 2006, Work in progress (draft-ietf-avt-rtp-and-rtcp-mux-02).

October 2006

• Colin Perkins, RTP and the Datagram Congestion Control Protocol (DCCP), Internet Engineering Task Force, October 2006, Work in progress (draft-ietf-dccp-rtp-01).
• Colin Perkins and Magnus Westerlund, Multiplexing RTP Data and Control Packets on a Single Port, Internet Engineering Task Force, October 2006, Work in progress (draft-ietf-avt-rtp-and-rtcp-mux-01).

September 2006

• Colin Perkins and Magnus Westerlund, Multiplexing RTP Data and Control Packets on a Single Port, Internet Engineering Task Force, September 2006, Work in progress (draft-perkins-avt-rtp-and-rtcp-mux-01).
• Colin Perkins and Magnus Westerlund, Multiplexing RTP Data and Control Packets on a Single Port, Internet Engineering Task Force, September 2006, Work in progress (draft-perkins-avt-rtp-and-rtcp-mux-00).
• Colin Perkins and Magnus Westerlund, Multiplexing RTP Data and Control Packets on a Single Port, Internet Engineering Task Force, September 2006, Work in progress (draft-ietf-avt-rtp-and-rtcp-mux-00).

July 2006

• Colin Perkins, RTP and the Datagram Congestion Control Protocol (DCCP), Internet Engineering Task Force, July 2006, Work in progress (draft-ietf-dccp-rtp-00).

June 2006

• Colin Perkins, RTP and the Datagram Congestion Control Protocol (DCCP), Internet Engineering Task Force, June 2006, Work in progress (draft-perkins-dccp-rtp-02).

March 2006

• Colin Perkins, RTP and the Datagram Congestion Control Protocol (DCCP), Internet Engineering Task Force, March 2006, Work in progress (draft-perkins-dccp-rtp-01).

January 2006

• Mark Handley, Van Jacobson, and Colin Perkins, SDP: Session Description Protocol, Internet Engineering Task Force, January 2006, Work in progress (draft-ietf-mmusic-sdp-new-26).

October 2005

• Colin Perkins, RTP and the Datagram Congestion Control Protocol (DCCP), Internet Engineering Task Force, October 2005, Work in progress (draft-perkins-dccp-rtp-00).
• Ladan Gharai, RTP Profile for TCP Friendly Rate Control, Internet Engineering Task Force, October 2005, Work in progress (draft-ietf-avt-tfrc-profile-05).

September 2005

• Colin Perkins, RTP Payload Format for Uncompressed Video: Additional Colour Sampling Modes, Internet Engineering Task Force, September 2005, Work in progress (draft-perkins-avt-uncomp-video-ext-00).
• Colin Perkins, RTP Payload Format for Uncompressed Video: Additional Colour Sampling Modes, Internet Engineering Task Force, September 2005, Work in progress (draft-ietf-avt-uncomp-video-ext-01).
• Colin Perkins, RTP Payload Format for Uncompressed Video: Additional Colour Sampling Modes, Internet Engineering Task Force, September 2005, Work in progress (draft-ietf-avt-uncomp-video-ext-00).

July 2005

• Mark Handley, Van Jacobson, and Colin Perkins, SDP: Session Description Protocol, Internet Engineering Task Force, July 2005, Work in progress (draft-ietf-mmusic-sdp-new-25).

February 2005

• Mark Handley, Van Jacobson, and Colin Perkins, SDP: Session Description Protocol, Internet Engineering Task Force, February 2005, Work in progress (draft-ietf-mmusic-sdp-new-24).

December 2004

• Mark Handley, Van Jacobson, and Colin Perkins, SDP: Session Description Protocol, Internet Engineering Task Force, December 2004, Work in progress (draft-ietf-mmusic-sdp-new-23).

November 2004

• Mark Handley, Van Jacobson, and Colin Perkins, SDP: Session Description Protocol, Internet Engineering Task Force, November 2004, Work in progress (draft-ietf-mmusic-sdp-new-22).

October 2004

• Mark Handley, Van Jacobson, and Colin Perkins, SDP: Session Description Protocol, Internet Engineering Task Force, October 2004, Work in progress (draft-ietf-mmusic-sdp-new-21).

September 2004

• Mark Handley, Van Jacobson, and Colin Perkins, SDP: Session Description Protocol, Internet Engineering Task Force, September 2004, Work in progress (draft-ietf-mmusic-sdp-new-20).

August 2004

• Mark Handley, Van Jacobson, and Colin Perkins, SDP: Session Description Protocol, Internet Engineering Task Force, August 2004, Work in progress (draft-ietf-mmusic-sdp-new-19).

June 2004

• Mark Handley, Van Jacobson, and Colin Perkins, SDP: Session Description Protocol, Internet Engineering Task Force, June 2004, Work in progress (draft-ietf-mmusic-sdp-new-18).
• Mark Handley, Van Jacobson, and Colin Perkins, SDP: Session Description Protocol, Internet Engineering Task Force, June 2004, Work in progress (draft-ietf-mmusic-sdp-new-17).

May 2004

• Mark Handley, Van Jacobson, and Colin Perkins, SDP: Session Description Protocol, Internet Engineering Task Force, May 2004, Work in progress (draft-ietf-mmusic-sdp-new-16).

April 2004

• Colin Perkins, RTP Retransmission Using Reactive FEC, Internet Engineering Task Force, April 2004, Work in progress (draft-perkins-avt-rtp-reactive-fec-00).

February 2004

• Ladan Gharai and Colin Perkins, RTP Payload Format for Uncompressed Video, Internet Engineering Task Force, February 2004, Work in progress (draft-ietf-avt-uncomp-video-06).

January 2004

• Ladan Gharai and Colin Perkins, RTP Payload Format for Uncompressed Video, Internet Engineering Task Force, January 2004, Work in progress (draft-ietf-avt-uncomp-video-05).

October 2003

• Mark Handley, Van Jacobson, and Colin Perkins, SDP: Session Description Protocol, Internet Engineering Task Force, October 2003, Work in progress (draft-ietf-mmusic-sdp-new-15).
• Ladan Gharai and Colin Perkins, RTP Payload Format for Uncompressed Video, Internet Engineering Task Force, October 2003, Work in progress (draft-ietf-avt-uncomp-video-04).

September 2003

• Mark Handley, Van Jacobson, and Colin Perkins, SDP: Session Description Protocol, Internet Engineering Task Force, September 2003, Work in progress (draft-ietf-mmusic-sdp-new-14).

June 2003

• Ladan Gharai and Colin Perkins, RTP Payload Format for Uncompressed Video, Internet Engineering Task Force, June 2003, Work in progress (draft-ietf-avt-uncomp-video-03).

May 2003

• Mark Handley, Van Jacobson, and Colin Perkins, SDP: Session Description Protocol, Internet Engineering Task Force, May 2003, Work in progress (draft-ietf-mmusic-sdp-new-13).

March 2003

• Mark Handley, Van Jacobson, and Colin Perkins, SDP: Session Description Protocol, Internet Engineering Task Force, March 2003, Work in progress (draft-ietf-mmusic-sdp-new-12).

February 2003

• Ladan Gharai and Colin Perkins, RTP Payload Format for Uncompressed Video, Internet Engineering Task Force, February 2003, Work in progress (draft-ietf-avt-uncomp-video-02).

December 2002

• Ladan Gharai, Colin Perkins, Gary Goncher, and Allison Mankin, RTP Payload Format for SMPTE 292M Video, Internet Engineering Task Force, December 2002, Work in progress (draft-ietf-avt-smpte292-video-08).

November 2002

• Mark Handley, Van Jacobson, and Colin Perkins, SDP: Session Description Protocol, Internet Engineering Task Force, November 2002, Work in progress (draft-ietf-mmusic-sdp-new-11).
• Ladan Gharai and Colin Perkins, RTP Payload Format for Uncompressed Video, Internet Engineering Task Force, November 2002, Work in progress (draft-ietf-avt-uncomp-video-01).

October 2002

• Ladan Gharai and Colin Perkins, RTP Payload Format for Uncompressed Video, Internet Engineering Task Force, October 2002, Work in progress (draft-ietf-avt-uncomp-video-00).

August 2002

• Ladan Gharai, Colin Perkins, Gary Goncher, and Allison Mankin, RTP Payload Format for SMPTE 292M Video, Internet Engineering Task Force, August 2002, Work in progress (draft-ietf-avt-smpte292-video-07).

June 2002

• Ladan Gharai, Colin Perkins, Gary Goncher, and Allison Mankin, RTP Payload Format for SMPTE 292M Video, Internet Engineering Task Force, June 2002, Work in progress (draft-ietf-avt-smpte292-video-06).
• Ladan Gharai and Colin Perkins, RTP Payload Format for Uncompressed Video, Internet Engineering Task Force, June 2002, Work in progress (draft-gharai-avt-uncomp-video-00).

May 2002

• Mark Handley, Van Jacobson, and Colin Perkins, SDP: Session Description Protocol, Internet Engineering Task Force, May 2002, Work in progress (draft-ietf-mmusic-sdp-new-10).
• Mark Handley, Van Jacobson, and Colin Perkins, SDP: Session Description Protocol, Internet Engineering Task Force, May 2002, Work in progress (draft-ietf-mmusic-sdp-new-09).
• Ladan Gharai, Colin Perkins, Gary Goncher, and Allison Mankin, RTP Payload Format for SMPTE 292M Video, Internet Engineering Task Force, May 2002, Work in progress (draft-ietf-avt-smpte292-video-05).

April 2002

• Mark Handley, Van Jacobson, and Colin Perkins, SDP: Session Description Protocol, Internet Engineering Task Force, April 2002, Work in progress (draft-ietf-mmusic-sdp-new-08).

March 2002

• Mark Handley, Van Jacobson, and Colin Perkins, SDP: Session Description Protocol, Internet Engineering Task Force, March 2002, Work in progress (draft-ietf-mmusic-sdp-new-07).
• Ladan Gharai, Gary Goncher, Colin Perkins, David Richardson, and Allison Mankin, RTP Payload Format for SMPTE 292M Video, Internet Engineering Task Force, March 2002, Work in progress (draft-ietf-avt-smpte292-video-04).

February 2002

• Mark Handley, Van Jacobson, and Colin Perkins, SDP: Session Description Protocol, Internet Engineering Task Force, February 2002, Work in progress (draft-ietf-mmusic-sdp-new-06).
• Mark Handley, Van Jacobson, and Colin Perkins, SDP: Session Description Protocol, Internet Engineering Task Force, February 2002, Work in progress (draft-ietf-mmusic-sdp-new-05).

November 2001

• Mark Handley, Van Jacobson, and Colin Perkins, SDP: Session Description Protocol, Internet Engineering Task Force, November 2001, Work in progress (draft-ietf-mmusic-sdp-new-04).

July 2001

• Mark Handley, Van Jacobson, and Colin Perkins, SDP: Session Description Protocol, Internet Engineering Task Force, July 2001, Work in progress (draft-ietf-mmusic-sdp-new-03).

June 2001

• Colin Perkins, Jonathan Rosenberg, and Henning Schulzrinne, RTP Testing Strategies, Internet Engineering Task Force, June 2001, Work in progress (draft-ietf-avt-rtptest-06).

April 2001

• Colin Perkins, Jonathan Rosenberg, and Henning Schulzrinne, RTP Testing Strategies, Internet Engineering Task Force, April 2001, Work in progress (draft-ietf-avt-rtptest-05).
• Colin Perkins, RTP Interoperability Statement, Internet Engineering Task Force, April 2001, Work in progress (draft-ietf-avt-rtp-interop-08).

March 2001

• Mark Handley, Van Jacobson, and Colin Perkins, SDP: Session Description Protocol, Internet Engineering Task Force, March 2001, Work in progress (draft-ietf-mmusic-sdp-new-01).
• Ladan Gharai, Gary Goncher, Colin Perkins, David Richardson, and Allison Mankin, RTP Payload Format for SMPTE 292M, Internet Engineering Task Force, March 2001, Work in progress (draft-ietf-avt-smpte292-video-02).
• Colin Perkins, RTP Interoperability Statement, Internet Engineering Task Force, March 2001, Work in progress (draft-ietf-avt-rtp-interop-07).

February 2001

• Colin Perkins, RTP Interoperability Statement, Internet Engineering Task Force, February 2001, Work in progress (draft-ietf-avt-rtp-interop-06).

November 2000

• Mark Handley, Van Jacobson, and Colin Perkins, SDP: Session Description Protocol, Internet Engineering Task Force, November 2000, Work in progress (draft-ietf-mmusic-sdp-new-00).
• Ladan Gharai, Gary Goncher, Colin Perkins, David Richardson, and Allison Mankin, RTP Payload Format for SMPTE 292M, Internet Engineering Task Force, November 2000, Work in progress (draft-ietf-avt-smpte292-video-01).
• Colin Perkins, Jonathan Rosenberg, and Henning Schulzrinne, RTP Testing Strategies, Internet Engineering Task Force, November 2000, Work in progress (draft-ietf-avt-rtptest-04).
• Colin Perkins, RTP Interoperability Statement, Internet Engineering Task Force, November 2000, Work in progress (draft-ietf-avt-rtp-interop-05).

August 2000

• Colin Perkins, RTP Interoperability Statement, Internet Engineering Task Force, August 2000, Work in progress (draft-ietf-avt-rtp-interop-04).

July 2000

• Colin Perkins, Jonathan Rosenberg, and Henning Schulzrinne, RTP Testing Strategies, Internet Engineering Task Force, July 2000, Work in progress (draft-ietf-avt-rtptest-03).
• Colin Perkins, RTP Interoperability Statement, Internet Engineering Task Force, July 2000, Work in progress (draft-ietf-avt-rtp-interop-03).

March 2000

• Mark Handley, Colin Perkins, and Edmund Whelan, Session Announcement Protocol, Internet Engineering Task Force, March 2000, Work in progress (draft-ietf-mmusic-sap-v2-06).

February 2000

• Mark Handley, Colin Perkins, and Edmund Whelan, Session Announcement Protocol, Internet Engineering Task Force, February 2000, Work in progress (draft-ietf-mmusic-sap-v2-05).

December 1999

• Mark Handley, Colin Perkins, and Edmund Whelan, Session Announcement Protocol, Internet Engineering Task Force, December 1999, Work in progress (draft-ietf-mmusic-sap-v2-04).

October 1999

• Colin Perkins, Interactions between SDP and multicast scoping, Internet Engineering Task Force, October 1999, Work in progress (draft-perkins-sdp-scoping-00).
• Mark Handley, Colin Perkins, and Edmund Whelan, Session Announcement Protocol, Internet Engineering Task Force, October 1999, Work in progress (draft-ietf-mmusic-sap-v2-03).
• Colin Perkins, Jonathan Rosenberg, and Henning Schulzrinne, RTP Testing Strategies, Internet Engineering Task Force, October 1999, Work in progress (draft-ietf-avt-rtptest-02).
• Colin Perkins, RTP Interoperability Statement, Internet Engineering Task Force, October 1999, Work in progress (draft-ietf-avt-rtp-interop-02).
• Mark Handley and Colin Perkins, Guidelines for Writers of RTP Payload Format Specifications, Internet Engineering Task Force, October 1999, Work in progress (draft-ietf-avt-rtp-format-guidelines-04).

August 1999

• Mark Handley, Colin Perkins, and Edmund Whelan, Session Announcement Protocol, Internet Engineering Task Force, August 1999, Work in progress (draft-ietf-mmusic-sap-v2-02).
• Colin Perkins, Jonathan Rosenberg, and Henning Schulzrinne, RTP Testing Strategies, Internet Engineering Task Force, August 1999, Work in progress (draft-ietf-avt-rtptest-01).
• Colin Perkins, RTP Interoperability Statement, Internet Engineering Task Force, August 1999, Work in progress (draft-ietf-avt-rtp-interop-01).

June 1999

• Mark Handley, Colin Perkins, and Edmund Whelan, Session Announcement Protocol, Internet Engineering Task Force, June 1999, Work in progress (draft-ietf-mmusic-sap-v2-01).
• Colin Perkins, RTP Testing Strategies, Internet Engineering Task Force, June 1999, Work in progress (draft-ietf-avt-rtptest-00).
• Colin Perkins, RTP Interoperability Statement, Internet Engineering Task Force, June 1999, Work in progress (draft-ietf-avt-rtp-interop-00).
• Mark Handley and Colin Perkins, Guidelines for Writers of RTP Payload Format Specifications, Internet Engineering Task Force, June 1999, Work in progress (draft-ietf-avt-rtp-format-guidelines-03).

November 1998

• Maryann P. Maher and Colin Perkins, Session Announcement Protocol: Version 2, Internet Engineering Task Force, November 1998, Work in progress (draft-ietf-mmusic-sap-v2-00).

March 1998

• Colin Perkins and Orion Hodson, Options for Repair of Streaming Media, Internet Engineering Task Force, March 1998, Work in progress (draft-ietf-avt-info-repair-03).

January 1998

• Colin Perkins and Orion Hodson, Options for Repair of Streaming Media, Internet Engineering Task Force, January 1998, Work in progress (draft-ietf-avt-info-repair-02).

November 1997

• Colin Perkins and Orion Hodson, Options for Repair of Streaming Media, Internet Engineering Task Force, November 1997, Work in progress (draft-ietf-avt-info-repair-01).

August 1997

• Colin Perkins, Options for Repair of Streaming Media, Internet Engineering Task Force, August 1997, Work in progress (draft-ietf-avt-info-repair-00).

July 1997

• Colin Perkins, Isidor Kouvelas, Orion Hodson, Vicky Hardman, Mark Handley, Jean-Chrysostome Bolot, Andres Vega-Garcia, and Sacha Fosse-Parisis, RTP Payload for Redundant Audio Data, Internet Engineering Task Force, July 1997, Work in progress (draft-ietf-avt-rtp-redundancy-01).

June 1997

• Colin Perkins, Isidor Kouvelas, Orion Hodson, Vicky Hardman, Mark Handley, Jean-Chrysostome Bolot, Andres Vega-Garcia, and Sacha Fosse-Parisis, RTP Payload for Redundant Audio Data, Internet Engineering Task Force, June 1997, Work in progress (draft-perkins-rtp-redundancy-04).
• Colin Perkins, Isidor Kouvelas, Orion Hodson, Vicky Hardman, Mark Handley, Jean-Chrysostome Bolot, Andres Vega-Garcia, and Sacha Fosse-Parisis, RTP Payload for Redundant Audio Data, Internet Engineering Task Force, June 1997, Work in progress (draft-ietf-avt-rtp-redundancy-00).

March 1997

• Colin Perkins, Isidor Kouvelas, Vicky Hardman, Mark Handley, Jean-Chrysostome Bolot, Andres Vega-Garcia, and Sacha Fosse-Parisis, RTP Payload for Redundant Audio Data, Internet Engineering Task Force, March 1997, Work in progress (draft-perkins-rtp-redundancy-03).

January 1997

• Colin Perkins, Isidor Kouvelas, Vicky Hardman, Mark Handley, Jean-Chrysostome Bolot, Andres Vega-Garcia, and Sacha Fosse-Parisis, RTP Payload for Redundant Audio Data, Internet Engineering Task Force, January 1997, Work in progress (draft-perkins-rtp-redundancy-02).

July 1996

• Mark Handley, Vicky Hardman, Isidor Kouvelas, Colin Perkins, Jean-Chrysostome Bolot, Andres Vega-Garcia, and Sacha Fosse-Parisis, Payload Format Issues for Redundant Encodings in RTP, Internet Engineering Task Force, July 1996, Work in progress (draft-perkins-rtp-redundancy-01).
• Mark Handley, Vicky Hardman, Isidor Kouvelas, Colin Perkins, Jean-Chrysostome Bolot, Andres Vega-Garcia, and Sacha Fosse-Parisis, Payload Format Issues for Redundant Encodings in RTP, Internet Engineering Task Force, July 1996, Work in progress (draft-perkins-rtp-redundancy-00).

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