DIN EN 300392-10-11:2004-12
Действует
Terrestrial Trunked Radio (TETRA) - Voice plus Data (V+D) - Part 10: Supplementary services stage 1 - Sub-part 11: Call Waiting (CW) (Endorsement of the English version EN 300392-10-11 V1.3.1 (2004-01) as German standard)
— 2 стр.
