DIN EN 300092-1:1999-12
Отменен
Integrated Services Digital Network (ISDN); Calling Line Identification Presentation (CLIP) supplementary service - Digital Subscriber Signalling System No. one (DSS1) protocol - Part 1: Protocol specification (Endorsement of the English version EN 300092-1 V 1.2.4 (1998-06) as German standard)
