DIN EN 300195-2:2000-01
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 1.3.4 (1998-10) as German standard)
