CONTENTS

 1     Scope
 2     References
 3     Definitions
 4     Abbreviations
 5     Description
 6     Operational requirements
        6.1     Provision and withdrawal
        6.2     Requirements at the originating network side
        6.3     Requirements at the terminating network side
 7     Primitive and state definitions
        7.1     Primitive definitions
        7.2     Call states
 8     Coding requirements
        8.1     Messages
        8.2     Information elements
 9     Signalling procedures at the coincident S_B and T_B reference point
        9.1     Call/connection establishment at the originating interface
        9.2     Call/connection establishment at the destination interface
        9.3     Handling of specific error conditions
10     Signalling procedures at the T_B reference point for interworking with private B-ISDNs
11     Interworking with other networks
       11.1     Interaction with entities which do not support the ABR ATM transfer capability
       11.2     Interworking with N-ISDN
12     Interactions with supplementary services
13     Parameters and timers
14     Dynamic description (SDLs)
Annex A – Valid combinations of traffic-related parameters for the support  of ABR transfer capability
Annex B – Handling of the cumulative RM fixed round-trip time parameter
        B.1     General
        B.2     Handling of the cumulative RM fixed round-trip time parameter
Appendix I – Instruction indicators