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].