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NBN ETS 300 403 5 : 1999
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INTEGRATED SERVICES DIGITAL NETWORK (ISDN); DIGITAL SUBSCRIBER SIGNALLING SYSTEM NO. ONE (DSS1) PROTOCOL - SIGNALLING NETWORK LAYER FOR CIRCUIT-MODE BASIC CALL CONTROL - PART 5: ABSTRACT TEST SUITE (ATS) AND PARTIAL PROTOCOL IMPLEMENTATION EXTRA INFORMATION FOR TESTING (PIXIT) PROFORMA SPECIFICATION FOR THE USER
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12-01-2013
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