CONTENTS

 3     Reverse Charging
        3.1     Scope
        3.2     References
        3.3     Definitions
        3.4     Abbreviations
        3.5     Description
        3.6     Operational requirements
        3.7     Coding requirements
        3.8     State definitions
        3.9     Signalling procedures at the coincident S and T reference point
       3.10     Procedures at T reference point for Interworking with private ISDNs
       3.11     Interaction with other networks
       3.12     Interaction with (other) supplementary services
       3.13     Parameter values
       3.14     Dynamic description (SDLs)