CONTENTS

 0     Introduction
 1     Scope and field of application
 2     References
 3     Definitions
 4     Abbreviations
 5     General aspects
        5.1     Circuit switched public data network
        5.2     Packet switched public data network
 6     Specification of interworking functions
        6.1     Connection establishment phase
             6.1.1     Connection establishment initiated on the CSPDN side
             6.1.2     Connection establishment initiated on the PSPDN side
        6.2     Connection release phase
             6.2.1     Connection release initiated on the CSPDN side
             6.2.2     Connection release initiated on the PSPDN side
             6.2.3     Connection release initiated by the IWF T.70
        6.3     Data transfer phase
             6.3.1     Handling of user data
             6.3.2     Handling of qualifier bit
             6.3.3     Handling of delivery confirmation bit
             6.3.4     Handling of more data bit
             6.3.5     Reset
 7     Restart request
        7.1     Restart request initiated by the PSPDN
        7.2     Restart request initiated by the IWF T.70
Appendix I - Items in relationship to the OSI connection-mode network service