1 Scope
2
Normative references
3
Symbols and abbreviations
4
Overview
5
Introduction to multipoint multimedia communication
6
The T.120 system model
6.1 User applications
6.2 Application protocols
6.3 Node Controller
6.4 Communications infrastructure
6.5 Networks
7
T.120 infrastructure Recommendations
7.1 Protocol stacks for audiographic and audiovisual conferencing
– Recommendation T.123
7.2 Multipoint
Communication Service (MCS) – Recommendations T.122, T.125
7.3 Generic Conference Control (GCC – Recommendation T.124)
8
Application protocol Recommendations
8.1 The Generic Application Template (GAT) – Recommendation T.121
8.2 Multipoint Still Image and Annotation Protocol (MSIA) –
Recommendation T.126
8.3 Multipoint Binary File Transfer (MBFT) – Recommendation T.127
8.4 T.120 extensions For audiovisual control – For further study
8.5 Proprietary extensions to standardized protocols
8.6 Non-standard application protocols
9
T.120 compliance
Annex A - T.120 channel and token
allocations
A.1 Static channels
A.2 Static tokens
A.3 Standard application protocol session identifiers
Annex B - MCS domain parameters