CONTENTS

 1     Scope
 2     References
 3     Terms and definitions
 4     Abbreviations
 5     Conventions
 6     General aspects
        6.1     PSPDN
        6.2     ISDN
        6.3     Call control between the PSPDN and ISDN
        6.4     Functionalities of the PSPDN and ISDN
 7     Specific interworking arrangements
        7.1     Interworking between PSPDN and ISDN where a packet switched bearer is requested
                  7.1.1     Transfer of addressing information
                  7.1.2     Arrangements for facilities related to the QOS of the call
                  7.1.3     Arrangements for facilities related to charging conditions applying to the call
                  7.1.4     Arrangements for facilities related to specific routing conditions applying to the call
                  7.1.5     Arrangements for facilities related to protection mechanisms requested by the user of a call
                  7.1.6     Arrangements for facilities to convey user data in addition to the normal data flow in the data transfer phase
                  7.1.7     Arrangements for other facilities
                  7.1.8     Arrangements for internal network utilities (not visible for users)
        7.2     Interworking between a PSPDN and ISDN where a circuit switched bearer is requested
                  7.2.1     Interworking by call-control mapping
                  7.2.2     Interworking by port access
        7.3     Interworking between PSPDN and ISDN where a frame relaying bearer is requested
                  7.3.1     Interworking by call-control mapping
                  7.3.2     Interworking by port access