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CSR-T Volume 9 #8, November-December 1998

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CSR-T Volume 9 #8, November-December 1998 COMMUNICATIONS STANDARDS REVIEW TELECOMMUNICATIONS Volume 9, Number 8 November-December 1998 In This Issue The following reports of recent standards meetings represent the view of the reporter and are not official, authorized minutes of the meetings. ITU-T SG16, Multimedia, September 14 – 25, 1998, Geneva, Switzerland....................................................2 WP 1 Report..........................................................................................................................5 WP 2 Report..........................................................................................................................5 WP 3 Report..........................................................................................................................6 Q1/16 WP2, Audiovisual/Multimedia Services................................................................................6 Q2/16 WP2, Interactive Multimedia Information Retrieval Services (MIRS)...........................................7 Q3/16 WP2, Data Protocols for Multimedia Conferencing.................................................................7 Q4/16 WP1, Modems for Switched Telephone Network and Telephone Type Leased Lines..........................9 Q5/16 WP1, ISDN terminal adapters, and interworking of DTEs on ISDNs with DTEs on other networks........10 Q6/16 WP1, DTE-DCE Interchange Circuits...................................................................................11 Q7/16 WP1, DTE-DCE Interface Protocols.....................................................................................12 Q8/16 WP1, DCE-DCE Protocols................................................................................................13 Q9/16 WP1, Accessibility to Multimedia for People with Disabilities..................................................13 Q10/16 WP1, Modem Testing....................................................................................................15 Q11/16 WP2, Circuit Switched Network (CSN) multimedia systems and terminals....................................16 Q12/16 WP2, B-ISDN Multimedia Systems and Terminals.................................................................18 Q13/16 WP2, Packet Switched Multimedia Systems and Terminals.......................................................19 Q14/16 WP2, Common Protocols, MCUs and Protocols for Interworking with H.300-series Terminals.........24 Q15/16 WP3, Advanced Video Coding..........................................................................................26 Q16/16 and Q17/16, Multimedia Harmonization and Coordination......................................................28 Q18/16 WP1, Interaction of high-speed voiceband data systems with signal processing............................30 Q19/16 WP3, Extension to existing ITU-T speech coding standards at bit rates below 16 kbit/s..................31 Q20/16 WP3, Audio and Wideband Coding in Public Telecommunication Networks..................................32 Q21/16 WP3, Encoding of Speech Signals at Bit Rates Around 4-kbit/s................................................35 Q22/16 WP3, Software and Hardware Tools for Standardization of Speech and Audio Coding Algorithms........37 Q23/16 WP1, PCM Modems......................................................................................................38 Meeting Roster of Study Group 16, September 14 – 25, 1998, Geneva, Switzerland..................................49 ETSI TM6 Access Transmission Systems On Metallic Cables, September 21 – 25, 1998, Vienna, Austria............43 HDSL (High-rate Digital Subscriber Loop).....................................................................................44 ANAI (Access Network Architecture and Interfaces)..........................................................................44 SDSL...................................................................................................................................45 ADSL..................................................................................................................................47 VDSL..................................................................................................................................48 Working Party 1/15, Network Access, October 12 – 23, 1998, Geneva, Switzerland.......................................51 WP1/15 Recommendations Approved at SG15................................................................................51 WP1/15 Recommendations Determined at SG15..............................................................................51 Q1/15, Access Network Transport...............................................................................................51 Q2/15, Characteristics of Optical Systems in Local Access Networks...................................................54 Q3/15, DCEs for Digital Leased Circuits.......................................................................................55 Q4/15, DCEs for Subscriber Access Systems..................................................................................55 WP1/15 Partial Meeting Roster, October 12 – 23, 1998, Geneva, Switzerland........................................64 Acronym Definitions.....................................................................................................................68 1998 and 1999 Standards Committee Meeting Schedules.........................................................................71 November-December 1998 Vol. 9.8 Copyright © CSR 1998 1 COMMUNICATIONS STANDARDS REVIEW – TELECOMMUNICATIONS REPORT OF ITU-T SG16, MULTIMEDIA, SEPTEMBER 14 – 25, 1998, GENEVA, SWITZERLAND APPROVED RECOMMENDATIONS OF SG16 The following Recommendations, ordered by Recommendation, were approved by Resolution 1 (Decision) at this meeting. Q Decided Recommendation Document(s) Q19 G.729, Coding of speech at 8 kbit/s using conjugate-structure algebraic-code-excited COM 16-45 + linear-prediction, Annex C, Floating point TD-16(PLEN) Q19 G.729, Coding of speech at 8 kbit/s using conjugate-structure algebraic-code-excited TD-43(PLEN)© linear-prediction, Annex D, 6.4 kbit/s extension Q19 G.729, Coding of speech at 8 kbit/s using conjugate-structure algebraic-code-excited TD-44(PLEN) linear-prediction, Annex E, 12 kbit/s extension, 11.8-kbit/s CS-ACELP speech coding algorithm Q12 H.222.0|ISO/IEC 13818-1 Amendment 5, Information Technology -- Generic Coding of COM 16-67 Moving Pictures and Associated Audio Information: Systems Q13 H.225.0 Annex I, H.263+ Video Packetization COM 16-70 Q11 H.226, H.multilink, Channel Aggregation Protocol for Multilink Operation on Circuit COM 16-62 Switched Networks Q14 H.245v4, Control Protocol for Multimedia Communication: Support for H.multilink COM 16-59 Q12 H.247, H.bmultipoint, Multipoint Extensions for Broadband Audiovisual Communication COM 16-69 Systems and Terminals Q12 H.310 Version 2, Broadband Audiovisual Communication Systems and Terminals COM 16-68, + TD-15(PLEN) Q13 H.323 Annex D, Real Time Facsimile over H.323 COM 16-60 + TD-54(PLEN) Q11 H.324 Annex F, v2, Multilink Operation COM 16-61 Q13 H.332, H.323 Extended For Loosely-Coupled Conferences COM 16-41 + TD-14(PLEN) Q4 V.8bis revised, Procedures for the Identification and Selection of Common Modes of COM 16-63 + Operation Between Data Circuit-Terminating Equipment (DCEs) and Between Data TD-58(PLEN) Terminal Equipment (DTEs) over the Public Switched Telephone Network and on Leased Point-To-Point Telephone-Type Circuits Q23 V.90, A Digital Modem and Analogue Modem Pair For Use on the Public Switched COM 16-64 + Telephone Network (PSTN) at Data Signalling Rates of up to 56 000 bit/s Downstream TD-6(PLEN) and up to 33 600 bit/s Upstream Table 1. Recommendations Approved (Decided) at SG16, September 1998. DETERMINED RECOMMENDATIONS OF SG16 The following recommendations, ordered by Recommendation, were Determined at this meeting. Determination is the first step of the approval process. Determined recommendations are expected to be proposed for approval at the next SG16 meeting (May, 1999). Q Determined Recommendation Document(s) Q1 F.700 Annex B.2, Communication task conferencing TD-50(PLEN) Q1 F.700 Annex C.1, Control and processing element Conference control TD-50(PLEN) Q19 G.728 Annex H Corrigendum, Variable Bit Rate TD-CELP Operation Mainly for DCME at TD-49(PLEN) Rates Less Than 16 kbit/s Q19 G.728, Annex I, Frame or Packet Loss Concealment for the LD-CELP Decoder TD-48(PLEN) Q11 H.221, revised, Frame structure for a 64 to 1920 kbit/s channel in audiovisual teleservices TD-23(PLEN) Q12 H.222.0|ISO/IEC 13818-1 Amendment 6, Information technology – generic coding of TD-30(PLEN) moving pictures and associated audio information: systems Q11 H.223, Annex D, Optional multiplexing protocol for low bit rate multimedia TD-37(PLEN) communication over highly error prone channel Q13 H.225.0 Annex G, Gatekeeper to Gatekeeper Communications (Communication between TD-61(PLEN) Administrative Domains) Q11 H.230, revised, Frame-synchronous control and indication signals for audiovisual systems TD-20(PLEN) 2 Vol. 9.8 Copyright © CSR 1998 November-December 1998 COMMUNICATIONS STANDARDS REVIEW – TELECOMMUNICATIONS Q11 H.242, revised, System for establishing communication between audiovisual terminals TD-22(PLEN) using digital channels up to 2 Mbit/s Q14 H.245v5, Control protocol for multimedia communication TD-39(PLEN) + TD-28(PLEN) Q15 H.262, Amendment #5: Generic coding of video, High level for the 4:2:2 profile TD-26(GEN) Q3 H.282 (ex V.RDC), Remote
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