CONTENTS

 1     Scope
 2     References
 3     Terms and definitions
 4     Abbreviations
 5     Description
 6     Operational requirements
 7     Coding requirements
        7.1     Messages
        7.2     Parameters
                  7.2.1     Call diversion treatment indicators parameter
                  7.2.2     Called IN number parameter
                  7.2.3     Call offering treatment indicators parameter
                  7.2.4     Charged party identification parameter (for national use)
                  7.2.5     Conference treatment indicators parameter
                  7.2.6     Correlation id parameter
                  7.2.7     Display information parameter
                  7.2.8     SCF id parameter
                  7.2.9     UID action indicators parameter
                 7.2.10     UID capability indicators parameter
 8     State definitions
 9     Signalling procedures
        9.1     IN basic call
                  9.1.1     Successful call set-up
                  9.1.2     Normal call release
                  9.1.3     Suspend, resume
                  9.1.4     ReleaseCall operation
                  9.1.5     Transfer of the called IN number
                  9.1.6     Abnormal conditions
        9.2     IN call with SCP request to collect further digits
        9.3     Detection Point processing
                  9.3.1     General
                  9.3.2     Actions to be performed in case of DPs armed in the request mode
        9.4     Set-up of an IN call to destination B
                  9.4.1     Successful call set-up
                  9.4.2     Timer TUID expiry
                  9.4.3     Abnormal conditions
                  9.4.4     Impact on supplementary services
        9.5     User interactive dialogue (in-band)
                  9.5.1     SSP supports requested IP capabilities
                  9.5.2     Assist method – procedure in the initiating SSP
                  9.5.3     Hand-off method – Procedure in the initiating SSP
                  9.5.4     Assist/Hand-off method – Procedure in the assisting SSP
        9.6     Call gapping
        9.7     Service filtering
                  9.7.1     Impact on supplementary services
        9.8     SCP initiated call
                  9.8.1     Successful call set-up
        9.9     Actions to be performed in local exchanges
                  9.9.1     Actions in the originating local exchange
                  9.9.2     Actions in the destination local exchange
       9.10     Actions in an intermediate exchange
                 9.10.1     In an intermediate exchange not starting timer T9
                 9.10.2     In an intermediate exchange starting timer T9
       9.11     Actions in international gateway exchanges
10     Interaction with other networks
11     Interaction between IN basic call and ISDN supplementary services
       11.1     Call diversion
                 11.1.1     Actions in the service switching point
                 11.1.2     Actions in the destination local exchange
       11.2     Calling line identification presentation/restriction
                 11.2.1     Actions in the service switching point
       11.3     Completion of calls to busy subscriber
                 11.3.1     Actions in the service switching point
       11.4     Conference
                 11.4.1     Actions in the originating or destination local exchange
       11.5     Connected line identification presentation/restriction
                 11.5.1     Actions in the service switching point
       11.6     Explicit call transfer
                 11.6.1     Actions in the service switching point
       11.7     Malicious call identification
                 11.7.1     Actions in the service switching point
                 11.7.2     Actions in the destination local exchange
       11.8     Three party
                 11.8.1     Actions in the originating or destination local exchange
12     Interactions between IN services
13     Parameter values (timers)
Annex A – Signalling flows
Appendix I – Coding of the compatibility information for the new parameters
Appendix II – Contents of the INAP serviceInteractionIndicators
Appendix III – Limitations for ISUP basic call procedures and supplementary services for different types of IN calls