EN 302 646-4 : 7.0.1

INTEGRATED SERVICES DIGITAL NETWORK (ISDN); SIGNALLING SYSTEM NO.7; DIGITAL CELLULAR TELECOMMUNICATIONS SYSTEM (PHASE 2+); APPLICATION OF ISDN USER PART (ISUP) VERSION 3 FOR THE ISDN-PUBLIC LAND MOBILE NETWORK (PLMN) SIGNALLING INTERFACE; PART 4: ABSTRACT TEST SUITE (ATS) AND PROTOCOL IMPLEMENTATION EXTRA IMPLEMENTATION FOR TESTING (PIXIT) PROFORMA SPECIFICATION

European Telecommunications Standards Institute