DIN EN 300182-1:2000-12
Действует
Integrated Services Digital Network (ISDN) - Advice of charge (AOC) supplementary service - Digital Subscriber Signalling System No. one (DSS1) protocol - Part 1: Protocol specification (Endorsement of the English version EN 300182-1 V 1.3.6 (1999-09) as German standard)
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