DIN EN 300195-2:2002-03
Отменен
Integrated Services Digital Network (ISDN) - Supplementary service interactions; Digital Subscriber Signalling System No. one (DSS1) protocol - Part 2: Protocol Implementation Conformance Statement (PICS) proforma specification (Endorsement of the English version EN 300195-2 V 2.1.1 (2001-06) as German Standard)
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