DIN EN 300392-12-4:2003-11
Отменен
Terrestrial Trunked Radio (TETRA) - Voice plus Data (V+D) - Part 12: Supplementary services stage 3; Sub-part 4: Call Forwarding (CF) (Endorsement of the English version EN 300392-12-4 V 1.1.1 (2003-07) as German standard)
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