Table of Contents
1Scope
2Definitions
3Systemdescription
3.1Blockdiagramandidentificationofelements
3.2Signals
3.3Bitrateoptionsandinfrastructure
3.4Callcontrolarrangements
3.5Optionalenhancements
4Terminalrequirements
4.1Environments
4.2Audioandvideoarrangements
4.3Delaycompensationintheaudiopath
4.4ControlandIndications(C4.5Multipointoperation
5Intercommunications
5.1Intercommunicationbetweendifferentvisualtelephone
terminaltypes
5.2Intercommunicationwithtelephony
5.3Intercommunicationwithotheraudiovisualterminals
6Maintenance
7Humanfactoraspects
7.1Physicalsection
7.2Logicalsection
AnnexA-OptionalenhancedvideoalgorithmsforH.320systems
A.1Introductiontoenhancedvideoalgorithms
A.2UseofITU-TRec.H.262inH.320systems
A.3UseofITU-TRec.H.263inH.320systems
A.4Enhancedvideoalgorithmhierarchy
A.5UseofITU-TRec.H.264inH.320systems Abstract
Specifies technical requirements for narrow-band visual telephone systems and terminal equipment, typically for videoconferencing and videophone services. Describes a generic system configuration consisting of a number of elements which are specified by respective ITU-T Recommendations, definition of communication modes and terminal types, call control arrangements, terminal aspects and interworking requirements.