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DIN ETS 300403-2:1996-06

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Integrated Services Digital Network (ISDN); Digital Subscriber Signalling System No. one (DSS1) protocol - Signalling network layer for circuit-mode basic call control - Part 2: Specification and Description language (SDL) diagrams; English version ETS 300403-2:1995
DIN ETS 300403-2:1996-06
Отменен