DIN EN 301813-1:2001-05
Действует
Integrated Services Digital Network (ISDN) and Broadband Integrated Services Digital Network (B-ISDN) - Generic Addressing and Transport (GAT) protocol - Part 1: Protocol specification (ITU-T Recommendation Q.860 (2000), modified) (Endorsement of the English version EN 301813-1 V 1.1.1 (2000-12) as German standard)
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