CONTENTS

 1     General
        1.1     Scope
        1.2     References
        1.3     Methodology
        1.4     Symbols and abbreviations
 2     Outgoing call
        2.1     Interworking from DSS 1 to ISUP
                  2.1.1     Basic call
                  2.1.2     Supplementary Services
        2.2     Interworking from non-ISDN access to ISUP
                  2.2.1     Basic call
                  2.2.2     Supplementary services
 3     Incoming call
        3.1     Interworking from ISUP to DSS 1
                  3.1.1     Basic call
                  3.1.2     Supplementary Services
        3.2     Interworking from ISUP to non-ISDN access
                  3.2.1     Basic call
                  3.2.2     Supplementary services
Annex A – Interworking scenarios between subscriber access  types interworking over SS 7 ISUP
        A.1     General
                  A.1.1     Scope
                  A.1.2     Methodology
                  A.1.3     Symbols and abbreviations
        A.2     Interworking of ISDN accesses over ISUP
                  A.2.1     Successful call set-up procedures/call flow diagrams for basic call control
                  A.2.2     Unsuccessful call set-up procedures/call flow diagrams for basic call control
                  A.2.3     Release procedures/call flow diagrams for basic call control
                  A.2.4     Simple segmentation procedures/call flow diagrams for basic call control
        A.3     Interworking of ISDN access and non-ISDN access over ISUP
                  A.3.1     Successful call set-up procedures/call flow diagrams
                  A.3.2     Unsuccessful call set-up procedures/call flow diagrams
                  A.3.3     Release procedures/call flow diagrams
                  A.3.4     Simple segmentation procedures
        A.4     Interworking of non-ISDN access over ISUP
                  A.4.1     Successful call set-up procedures/call flow diagrams
                  A.4.2     Unsuccessful call set-up procedures/call flow diagrams
                  A.4.3     Release procedures/call flow diagrams
                  A.4.4     Suspend/resume procedures/call flow diagrams