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ÖNORM EN 300356-36 V 3.3.1:2003-04

Действует
Integrated Services Digital Network (ISDN) - Signalling System No.7 (SS7) - ISDN User Part (ISUP) version 3 for the international interface - Part 36: Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT) proforma specification for supplementary services (incl. CD-ROM!!!)