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Communicate Simply White Papers by Polycom
Polycom: Market Leader and Industry Leader
Table of Contents Introduction ............................................................................................. 1 A Commitment to Customers, Excellence, and Market Growth ......... 1 Polycom’s Leadership in International Standardization Activities ...... 2 ITU-T Study Group 16 – Working Party 2 ...................................................2 ITU-T Study Group 16 – Working Party 3 ...................................................2 IETF ................................................................................................................3 IMTC ..............................................................................................................3 TIA ..................................................................................................................3
Summary of Polycom Leadership in Standardization ......................... 4 Current Polycom Leadership Roles - International Standardization .......4 Past Polycom Leadership Roles - International Standardization .............4 Polycom Leadership Roles - United States National Committees ..........5
Communicate Simply White Papers by Polycom
Introduction Polycom, the world leader in the convergence of interactive voice, video, data, and web communications, is helping to shape this exciting industry through extensive involvement in national and international technology standardization efforts. Polycom has been dedicated to international standardization since 1987. Polycom experts have been, and continue to be, respected leaders in, and contributors to, numerous key activities in many standardization bodies.
A Commitment to Customers, Excellence, and Market Growth Polycom has been very active in international standardization work. As the market leader, Polycom strives to lead international technical standardization in order to: • Move the industry toward more capable, efficient, cost-effective, and interoperable solutions • Ensure that the products and solutions we offer are future-proof and of greatest value to our customers • Help make the most advanced communication technologies accessible to the widest audience possible Polycom’s technical and engineering staff are recognized as key contributors and leaders in standardization activities. Staff members have received the prestigious IMTC Leadership Award for leadership in the standards community, have published numerous technical articles and papers, and have contributed to and co-authored books including Digital Compression for Multimedia: Principles and Standards (Morgan Kaufmann, 1998) and Multimedia Communications (Academic Press, 2001). Polycom staff are regularly invited to speak on technical and standardization topics at industry forums and trade shows.
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Polycom’s Leadership in International Standardization Activities Among its many activities, Polycom is currently active in the following groups and committees:
ITU-T Study Group 16 – Working Party 2 ITU-T SG16 WP2 defines standards in the area of multimedia platforms and interworking. Polycom was deeply involved in the design of the H.320, H.323, H.324, and T.120 systems, as well as numerous related standards. Currently, Polycom experts are active in the following roles: • Contributor to work in H.323 and H.248. • Editor of H.323 V5 • Editor of H.323 annex Q on Far End Camera Control • Editor of H.248/MEGACO annex on Packages for Decomposed MCU. • Contributor to the work on H.235, security for H.323 systems. • Editor of ITU-T Rec. H.324 • Editor of H.239, Role Management and Additional Media Channels for H.300 Series Terminals • Editor of H.241, Extended Video Procedures and Control Signals for H.300 Series Terminals
ITU-T Study Group 16 – Working Party 3 ITU-T SG16 WP3 defines standards for coding and compression of video and audio signals. Polycom has made major contributions to ITU-T Recs. H.261, H.263, and the new H.264, and was the primary inventor of ITU-T G.722.1. In recent months, Polycom staff members have been active as follows: • Rapporteur for ITU-T Study Group 16 Question E, “Media Coding”. This question addresses all aspects of media coding, including audio, video, graphics, still-imageand character coding for, both conversational and non-conversational applications. This includes conventional and IP telephony, audiovisual multimedia communications, and other applications that not addressed by other media coding questions in ITU-T. This Question also addresses the need to define extensions to existing ITU-T media coding Recommendations for use in conversational and nonconversational services and systems. • Major contributor to ITU-T SG16 Q.6 (Video Coding Experts Group, VCEG) on the H.264 next-generation video coding project. (H.264 was formerly known as H.26L.) Over the last year, VCEG has been working jointly with the ISO MPEG committee in
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the Joint Video Team (JVT). JVT is responsible for defining the emerging H.264/AVC (also known as MPEG-4 part 10) video standard. Polycom developed the error concealment feature (Flexible Macroblock Ordering) that is a key component of the Baseline and X profiles in the proposed H.264 standard. Chair of ITU-T Study Group 16 Working Party 3 (co-sponsor) Chair, JVT Ad-Hoc Group for H.264 complexity reduction. Chair, JVT Ad-Hoc Group on Profiles, Levels, and Applications (for H.264/AVC). Chair, VCEG Ad-Hoc Group on Requirements. Editor, ITU-T G.722.1, wideband audio coding at 24 and 32 kbits/sec. G.722.1 is the only high-efficiency wideband audio compression algorithm optimized for music and natural sounds as well as speech. Polycom was the primary contributor of this standard. Polycom is leading a group of 32 companies worldwide in a program to make available the Baseline profile of the H.264/AVC standard available on a royalty-free basis.
IETF Polycom is involved in the work on SIP and other working groups important for multimedia teleconferencing and voice over IP. Polycom staff are currently leading and contributing in the following roles: • Member of the SIPPING design team defineing the conferencing architecture and protocols in SIP. • Co-editor of drafts on conferencing requirements and video control. • Editor of draft on media policy control protocol.
IMTC IMTC is a group of over 80 firms working to promote standardization and widespread use of multimedia teleconferencing. Polycom has been active in IMTC since co-founding the organization in 1994, and senior Polycom staff are participating in the following roles: • Member, IMTC Board of Directors • Treasurer of the IMTC • Official Liaison Representative to MPEG on video coding issues • Co-chair of the Media Coding Activity Group • Chair, Requirements Working Group. A major focus of IMTC is to work with ITU, ISO, IETF, MPEG, and other standardization organizations for policies and standards that reflect the needs of the teleconferencing industry.
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Summary of Polycom Leadership in Standardization Current Polycom Leadership Roles - International Standardization • • • • • • • • • • • • •
Rapporteur, ITU-T SG16 Q.E – “Media Coding” (2002 – present) Chair, IMTC Requirements Working Group (2001 – present) Co-chair, IMTC Media Coding Activity Group (1999 - present) Member, Board of Directors, IMTC (1995 - present) Editor, H.324: Terminal for low bit-rate multimedia communication (1995-1998, 2001 - present) Editor, H.323v5, IP Videoconferencing & VoIP (2000 – present) Editor, H.323 Annex Q, “Far End Camera Control” (2000 – present) Editor, H.248/MEGACO annex on Packages for Decomposed MCU (2001- present) Editor, G.722.1: 7 kHz audio coding at 24 and 32 kbit/s (1999 – present) Liaison Representative from IMTC to ISO MPEG on video coding issues (2001 – present) Chair, ITU-T Study Group 16, Working Party 3 (co-sponsor), audio & video coding (2002 - present) Editor, H.239, Role Management and Additional Media Channels for H.300 Series Terminals (2003 - present) Editor, H.241, Extended Video Procedures and Control Signals for H.300 Series Terminals (2003 - present)
Past Polycom Leadership Roles - International Standardization • • • • • • • • • • • • • •
Vice-Chair, ITU-T Study Group 15: Videoconferencing (1992 - 1996) Editor, T.124: Generic Conference Control for T.120 (1992 - 1995) Co-Editor, T.126: Still image transfer & annotation for T.120 (1992 - 1995) Editor, H.224: Data Link Layer for H.320 (1994 - 1995) Editor, H.281: Far end camera control for H.320 (1994 - 1995) Chair, H.324 System Experts Group (1994 - 1997) Editor, H.324: POTS videoconferencing (1994 -1997) Co-Author: Restricted mode operation for H.320 (1995) Chair, ITU-T SG15 Working Party 2: Audio coding (1995 - 1996) Co-Author, H.245: Conference control for H.323/H.324 (1995 - 1996) Chair, IMTC Corporate Network Conferencing Activity Group (1995 - 1997) Co-Editor, H.223: Multiplexing system for H.324 (1994 - 1997) Editor, H.324/I: Extends H.324 to ISDN (1996 - 1997) Editor, H.MediaMIB: SNMP management of videoconf. equipment (1996 - 1997)
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Editor, H.246: Interworking LAN/WAN gateways for H.32x clients (1996 - 1997) Chair, IMTC Ad-Hoc Group on Harmonization of Conferencing Protocols (1997) Co-Author, H.323: IP videoconferencing (1995 - 1998) Editor, V.140: Automatic H.320/H.323/H.324 mode selection (1996 - 1998) Editor, H.263+: Next generation video coding (1996 - 1998) Co-Author, T.128 (T.Share): PC application sharing (1996 - 1998) Editor, T.135 (T.RES.1): Reservation protocol for T.120 (1996 - 1998) Co-chair, IMTC Packet Network Conferencing Activity Group (1997 - 1998) Editor, H.226 (H.Multilink): Channel aggregation for H.324 (1997 - 1998) Rapporteur, ITU-T Q3/16: T.120 (co-sponsor) (1997 - 1999) Rapporteur, ITU-T Q15/16 Advanced Video Coding (1997 - 1999) Editor, H.283: Remote Device Control for H.323 (1998 - 1999) Rapporteur, ITU-T Q24/16 Variable Bitrate Coding of Speech (2000) Vice-Chair, ITU Study Group 16 for Multimedia (1997 - 2000) Editor, H.243 version 2: Multipoint Communication (1999 - 2000) Rapporteur, ITU-T Q1/16 Multimedia systems, terminals and data conferencing (2000 - 2001) Editor, H.320 series: Narrow-band visual telephone systems (2000 - 2001) Chair, VCEG Requirements Ad-Hoc group (2001 - 2002) Chair, JVT Profiles, Levels & Applications Ad-Hoc group (2001- 2002) Chair, JVT Complexity Reduction Ad-Hoc group (2001 – 2002) Co-founder, IMTC 1994 Chair, TIA TR41.4.4 “VoIP Terminals” (2001 - 2003)
Polycom Leadership Roles - United States National Committees • • •
Chair, ANSI Committee T1A1.7: Audio coding (1993 - 1998) Chair, ANSI Committee T1A1.5 Ad-Hoc on H.263/2 hierarchy for H.320 (1996) Editor, ANSI Committee T1A1.5 work on H.324 (1996 - 1998)
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Contact Information Corporate Headquarters Polycom, Inc. 4750 Willow Rd. Pleasanton, CA 94588-2708 USA Phone: +1.925.924.6000 Fax: +1.925.924.6100 European Headquarters Polycom Ltd. 270 Bath Road Slough Berkshire SL1 4DX United Kingdom Phone: +44 (0) 1753 723000 Fax: +44 (0) 1753 723010 Asia Pacific Headquarters Polycom Solutions Pte. Ltd. 16 Raffles Quay #40-02A, Hong Leong Building Singapore 048581 Phone: +65.323.3882 Fax: +65.323.3022 For additional information, please visit the Polycom web site at www.polycom.com
Polycom and the Polycom logo design are registered trademarks of Polycom, Inc. in the U.S. and various countries. ©2003 Polycom, Inc. All rights reserved.
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