Table of Contents
1Scope
2Normativereferences
3Definitionsandsymbols
3.1Definitions
3.2Symbols
4Abbreviations
5General
5.1ApplicationofthisRecommendation
5.1.1Intercommunicationofaudiovisualequipment
5.1.2Intercommunicationofnon-audiovisual
equipment-CaseD
5.2DefinitionofthemodesoftransmissionontheMCside
5.3Generaldescriptionoftheaggregationprocess
5.4CAUfunctionality
6ChoiceofH.244orISOaggregation
7H.244aggregationprocedure
7.1Callcontrol
7.1.1Initialchannel
7.1.2Additionalchannels
7.2Channelsynchronisation
7.3In-bandprocedureusingH.221BAScodes
7.3.1Controloftransfer-rate
7.3.2Determinationofthetransfer-ratecapabilities
tobetransmittedontheMCside
7.3.3Determinationofthetransfer-ratecapabilities
tobetransmittedontheSCside
7.3.4CapabilitysetstransmittedfromaCAU
7.3.5NotificationofchangeN[a]
7.3.6CommandstransmittedfromaCAU
7.4TransmissionofuserinformationbyaCAU
8Initialization,mode/ratechangingandfaultrecovery
8.1Initialization
8.1.1Single-channelside
8.1.2Multi-channelside,initialchannel
8.1.3Multi-channelside,additionalchannels
8.2Changeoftransmissionrateduringasession
8.3Recoveryfromfaultconditions
8.4Furthermodechanges
9ISOaggregationprocedures
AppendixIExamplesofprocedures
AppendixIIExampleofSDLdiagramforTACinitialization
AppendixIIICommentsonthemodificationofcapsetsandcommands Abstract
Provides for synchronization and aggregation of multiple channels of 64 kbit/s or 56 kbit/s each being with or without octet integrity and relative transmission delay in the range + or - one second.
