EN 300 093-4 : 1.3.1

INTEGRATED SERVICES DIGITAL NETWORK (ISDN); DIGITAL SUBSCRIBER SIGNALLING SYSTEM NO. ONE (DSS1) PROTOCOL; CALLING LINE IDENTIFICATION RESTRICTION (CLIR) SUPPLEMENTARY SERVICE; PART 4: ABSTRACT TEST SUITE (ATS) AND PARTIAL PROTOCOL IMPLEMENTATION EXTRA INFORMATION FOR TESTING (PIXIT) PROFORMA SPECIFICATION FOR THE USER

European Telecommunications Standards Institute