DS EN 300392-12-6:2006
DS EN 300392-12-6:2006 Terrestrial Trunked Radio (Tetra) - Voice Plus Data (V+D) - Part 12: Supplementary Services Stage 3 - Sub-Part 6: Call Authorized By Dispatcher (Cad) Provides the stage 3 specifications of the Supplementary Service Call Authorized by Dispatcher (SS-CAD) for the Terrestrial Trunked Radio (TETRA) as provided by European operators.