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DIN ETS 300379-1:1996-07

Отменен
Signalling Protocols and Switching (SPS) - Q3 interface at the Local Exchange (LE) for fault and performance management of V5 interfaces and associated customer profiles - Part 1: Q3 interface specification; English version ETS 300379-1:1995
DIN ETS 300379-1:1996-07
Отменен