CONTENTS

 2     Advice Of Charge (AOC)
        2.1     Scope
        2.2     References
        2.3     Definitions
        2.4     Abbreviations
        2.5     Description
        2.6     Operational requirements
        2.7     Coding requirements
        2.8     State definitions
        2.9     Signalling procedures at the coincident S and T reference point
       2.10     Procedures for interworking with private ISDNs
       2.11     Interactions with other networks
       2.12     Interaction with other supplementary services
       2.13     Parameter values (timers)
       2.14     Dynamic description (SDLs)
Appendix I – Signalling flows