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DIN ETS 300097-1:1995-12

Отменен
Integrated Services Digital Network (ISDN) - Connected Line Identification Presentation (COLP) supplementary service; Digital Subscriber Signalling System No. one (DSS1) protocol - Part 1: Protocol specification; English version ETS 300097-1:1992 + A1:1994
DIN ETS 300097-1:1995-12
Отменен