Integrated Services Digital Network (ISDN); ISDN - Global System for Mobile Communications (GSM) Public Land Mobile Network (PLMN) Signalling Interface Test Specification
This European Telecommunications Standard (ETS) specifies the ISDN User Part (ISUP) protocol test specification to be used for the verification of the Integrated Services Digital Network (ISDN) - Global System for Mobile communications (GSM) Public Land Mobile Network (PLMN) signalling interface defined in ETS 300 303 [2]. Both validation testing@ i.e. to provide a level of confidence that a given implementation conforms to ETS 300 303 [2]@ and compatibility testing@ i.e. to provide a level of confidence that two implementations of ETS 300 303 [2] are compatible@ are specified. This ETS is based on the ISUP version 1 test specification in ETS 300 335 [3]. The appropriate modifications to ETS 300 335 [3] contained in this ETS are based on CCITT Recommendations Q.784 [5] and Q.785 [6].