CONTENTS

 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