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DIN ETS 300009-1:1997-07

Отменен
Integrated Services Digital Network (ISDN) - Signalling system No. 7; Signalling Connection Control Part (SCCP) (connectionless and connection-oriented class 2) to support international interconnection - Part 1: Protocol specification; English version ETS 300009-1:1996
DIN ETS 300009-1:1997-07
Отменен