DS EN 300392-10-11:2006
DS EN 300392-10-11:2006 Terrestrial Trunked Radio (Tetra) - Voice Plus Data (V+D) - Part 10: Supplementary Services Stage 1 - Sub-Part 11: Call Waiting (Cw) Specifies the stage 1 description of the call waiting supplementary service (SS-CW) for the Terrestrial Trunked Radio (TETRA) as provided by European operators.