ITU-TSG16 IMTC – H.323 Forum – May 2002 ITU-T Study Group 16 activities and H.323 Simão Ferraz de Campos Neto Counsellor – ITU-T Study Group 16 Multimedia Services, Systems and Terminals

ITU-TSG16 IMTC – H.323 Forum – May 2002 The ITU-T o The ITU is an inter-governmental organization under the umbrella of the United Nations ( o The ITU Telecommunications Standardization Sector (ITU-T) was formed in 1993 replacing the former International Telegraph and Telephone Consultative Committee (CCITT) with a mission is to ensure an efficient and on-time production of high quality standards covering all fields of telecommunications o The ITU-T: is a unique partnership of governments and industry producing standards on all aspects of telecommunications currently has over 450 members from industry has more than 2800 Recommendations in force

ITU-TSG16 IMTC – H.323 Forum – May 2002 ITU-T Study Group 16 Responsible for studies relating to: o multimedia service definition and multimedia systems, including the associated terminals, modems, protocols and signal processing. Lead Study Group on o Multimedia Services, Systems and Terminals o e-business and e-commerce Responsible for the development of Recommendation H.323 and supporting standards (

ITU-TSG16 IMTC – H.323 Forum – May 2002 ITU-T Study Group 16 Study Group 16 Multimedia Services Systems & Terminals Pierre-André Probst Working Party 1 Modems and Facsimile Terminals Mitsuji Matsumoto Working Party 2 Multimedia Platforms and Interworking Federico Tosco Working Party 3 Media Coding John Magill (acting) Working Party 4 Multimedia Framework John Magill ITU-TSB Counsellor Simão Ferraz de Campos Neto

ITU-TSG16 IMTC – H.323 Forum – May 2002 ITU-T Study Group 16 Working Party 1/16 - Modems and facsimile terminals H/16 Accessibility to Multimedia Systems and Services 11/16 Voiceband Modems: Specification and Performance Evaluation 12/16 DCE-DCE protocols for the PSTN and ISDN 13/16 DTE-DCE Interfaces and Protocols 14/16 Facsimile terminals Working Party 2/16 - Multimedia platform and interworking D/16Interoperability of Multimedia Systems and Services F/16 Quality of Service (QoS) and End-to-End Performance in Multimedia Systems G/16 Security of Multimedia Systems and Services 1/16 Multimedia Systems, Terminals and Data Conferencing 2/16 Multimedia over Packet Networks using H.323 Systems 3/16 Infrastructure and Interoperability for Multimedia over Packet Network Systems 4/16 Video and data conferencing using Internet supported services 5/16 Mobility for Multimedia Systems and Services

ITU-TSG16 IMTC – H.323 Forum – May 2002 ITU-T Study Group 16 Working Party 3/16 – Media coding E/16 Media coding 6/16 Advanced video coding 7/16 Wideband coding 8/16 Encoding of speech signals at bit rates around 4 kbit/s 9/16 Variable bit rate coding of speech signals 10/16 Software tools for signal processing standardization activities and maintenance of existing voice coding standards 15/16 Distributed Speech Recognition (DSR) and Distributed Speaker Verification (DSV) Working Party 4/16 – Multimedia framework A/16 Mediacom-2004 B/16 Multimedia Architecture C/16 Multimedia applications and services

ITU-TSG16 IMTC – H.323 Forum – May 2002 Multimedia terminal and systems H Broadband audiovisual communication systems and terminals H Narrow-band visual telephone systems and terminal equipment H Adaptation of H.320 visual telephone terminals to B-ISDN environments H Visual telephone systems and terminal equipment for LANs which provide a guaranteed QoS H Packet-based multimedia communications systems H Terminal for low bit-rate multimedia communication

ITU-TSG16 IMTC – H.323 Forum – May 2002 H.323 family – approved summer 2001 H.323 Annex M3 – DSS1 Tunneling H.323 Annex Q – Far End Camera Control H.323 Annex R – Robustness H – Number Portability interworking between H.323 and SCN networks H – Common Information Additional Network H.245V8 – Control protocol for multimedia communication H.246 Annex F – Interworking of H.323 and H.324 Annex C H.248 Annex L – Error Code and Service Change Reason Description H.248 Annex M.2 – Congestion Control Package H.248 Annex M.4 – Interworking between H.324C (“H.324/M”) and H.323

ITU-TSG16 IMTC – H.323 Forum – May 2002 H.323 family – approved March 2002 H.235 Annex F – Hybrid security profile H – Guidelines for the Use of the Generic Extensible Framework H.501 (ex H.22x.0) – Protocol for mobility management and inter- domain communication in multimedia systems H.510 (ex H.MMS.1) – Mobility for H.323 multimedia systems H.530 (ex H.235 Annex G) – Symmetric Security Procedures for H.510 H.248 – new H.248.x sub-series

ITU-TSG16 IMTC – H.323 Forum – May 2002 H.248 Gateway Control Protocol Recommendation restructuring o H.248 & Annexes converted into the H.248.x sub-series: Clear understanding of different components More modular expandability o Version 1 of H comprises the main body plus Annexes A to E of H.248 approved in 06/2000, updated with changes, clarifications and corrections but no new functionality (approved in 03/2002) o H Version 1 will formally be superseded by H Version 2, currently in the AAP process. o H.248 Annexes F to N converted to Recs. H to H

ITU-TSG16 IMTC – H.323 Forum – May 2002 H.248.x Sub-series (1/2) Annex F→H.248.2Facsimile, text conversation and call discrimination packages Annex G→ H.248.3User interface elements and action packages Annex H → H.248.4Transport over SCTP Annex I→ H.248.5Transport over ATM Annex J→H.248.6Dynamic tone definition package Annex K→H.248.7Generic announcement package Annex L→H.248.8Error codes and service change reason description

ITU-TSG16 IMTC – H.323 Forum – May 2002 H.248.x Sub-series (2/2) Annex M1→H.248.9Advanced media server packages Annex M2→H Media gateway resource congestion handling package Annex M4→H H.248 packages for H.323 and H.324 interworking Annex M5→H Quality alert ceasing package Annex M6→H Inactivity timer package Annex N→H SDP H.248 package Note: Annex M3 was foreseen for future development.

ITU-TSG16 IMTC – H.323 Forum – May 2002 H.323 family – Future (1/2) Examples of ongoing work are: o H.323 – enhancements on: Packet based MM telephony over error prone channels Internet Protocols and technologies complementary to H.323 Real Time modem relay over H.323 (“MoIP”) H.323 Mobility H.323 Version 5

ITU-TSG16 IMTC – H.323 Forum – May 2002 H.323 family – Future (2/2) More examples: oH.248.x extensions on: Media Gateway Overload Control Package (.11) Extended DTMF Detection Package (.16) Line Test Package (.17) Package for Support of Multiple Profiles (.18) Package to Support Decomposed MCU (.19) oRecommendations for Quality of Service over IP Based networks: H.mmclass Service level QoS classification for service components H.qos.arch QoS signalling at Application and Transport levels H.trans.cont Application to Transport Level signalling

ITU-TSG16 IMTC – H.323 Forum – May 2002 H.323 Forum o The ITU-T welcomes the creation of the new H.323 Forum o Study Group 16 looks forward to working with the Forum to: receive user feedback encourage deployment and interoperability of ITU-T H.323 based products help promote the work of the ITU-T o We wish you much success!

ITU-TSG16 IMTC – H.323 Forum – May 2002 Thank you for your attention! For further contact, please feel free to contact: Simão Ferraz de Campos Neto Counsellor, ITU-T Study Group 16 Tel: Fax: