ITU H.321:1998

ITU H.321:1998 Adaptation Of H.320 Visual Telephone Terminals To B-isdn Environments Covers technical specifications for adapting narrow-band audiovisual communications terminals, as specified in Rec. H.320, to broadband ISDN environments.

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Table of Contents

1Scope
2References
3Definitionsandabbreviations
3.1Definitions
3.2Abbreviations
4Systemdescription
4.1Applications
4.2Systemconfiguration
4.3Genericterminalarchitecture
4.4Terminaltype
4.5Point-to-pointcommunication
4.6Multipointcommunication
5Infrastructure
5.1Audiocoding
5.2Videocoding
5.3Multimediamultiplexingandsynchronization
5.4End-to-endcontrol
5.5Communicationprocedures
5.6AALfunctions
5.7Callcontrol
6Terminalequipment
6.1Environments
6.2Audiosourceandarrangement
6.3Videosourceandarrangement
6.4Dataandotherauxiliaryequipment
6.5Optionalenhancements
6.6Errorresilience
7Intercommunications
7.1IntercommunicationamongH.321terminals
7.2IntercommunicationwithN-ISDNterminals
7.3IntercommunicationbetweenAAL-1andAAL-5
7.4Intercommunicationwithaudiovisualterminals
connectedtoothernetworks
AnnexATheuseofATMAdaptationLayerType1
A.1Scope
A.2AALfunctions
A.2.1Convergencesublayerfunctions
A.2.2SARsublayerfunctions
A.2.3CellDelayVariation
A.3Callcontrol
A.3.1Digitalconnection
A.3.2Telephonyconnection
AnnexBTheuseofATMAdaptionLayerType5
B.1Scope
B.2Terminalarchitecture
B.3NetworkAdaptationLayer
B.3.1Alignmentofoctets
B.3.2Interleavingoftimeslots
B.3.3Determinationofpacketsize
B.3.4Optionalerrorhandlingprocedures
B.4AALfunctions
B.4.1Convergencesublayerfunctions
B.4.2SARsublayerfunctions
B.5Callcontrol
B.5.1Digitalconnection
B.5.2Telephonyconnection
AnnexCAlternativesfor8kHztimingofH.321terminals
C.1Scope
C.2Receiverclock
C.3Transmitterclock
C.4Choosingbetweenadaptiveandindependentclocks

Abstract

Covers technical specifications for adapting narrow-band audiovisual communications terminals, as specified in Rec. H.320, to broadband ISDN environments.

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