DIN EN 300392-12-4:2011-01
Отменен
Terrestrial Trunked Radio (TETRA) - Voice plus Date (V+D) - Part 12: Supplementary services stage 3 - Sup-part 4: Call Forwarding (CF) (Endorsement of the English version EN 300392-12-4 V1.2.1 (2010-07) as German standard)
— 2 стр.
