scope:

This European Telecommunication Standard (ETS) has been produced by the Signalling Protocols and Switching (SPS) Technical Committee of the European Telecommunications Standards Institute (ETSI). This ETS belongs to a set of standards related to the Broadband Integrated Services Digital Network (B-ISDN) User Part (B-ISUP) Capability Set 1 (CS1) for the international interface, as described below: ETS 300 656: "Basic services [ITU-T Recommendations Q.2761 to Q.2764 (1995), modified]"; ETS 300 657: "Supplementary services [ITU-T Recommendation Q.2730 (1995), modified]"; ETS 300 495: "B-ISUP to DSS2 interworking [ITU-T Recommendation Q.2650 (1995), modified]"; ETS 300 496: "B-ISUP to ISUP interworking [ITU-T Recommendation Q.2660 (1995), modified]"; ETS 300 685: "Usage of cause and location in DSS2 and B-ISUP [ITU-T Recommendation Q.2610 (1995), modified]".