DIN EN 300392-12-13:2012-11
Действует
Terrestrial Trunked Radio (TETRA) - Voice plus Data (V+D) - Part 12: Supplementary services stage 3 - Sub-part 13: Call Completion to Busy Subscriber (CCBS) (Endorsement of the English version EN 300 392-12-13 V1.2.1 (2012-03) as German standard)
— 2 стр.
