DIN ETS 300392-10-11:2001-07
Отменен
Terrestrial Trunked Radio (TETRA) - Voice plus Data (V+D) - Part 10: Supplementary services stage 1; Sub-part 10-11: Call waiting (CW) (Endorsement of the English version ETS 300392-10-11:2000-02 as German Standard)
