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Contents Contents 1 Description.......................................................................................................4 1.1 General features........................................................................................................4 1.2 List of features............................................................................................................6 2 Command list...................................................................................................8 2.1 Overview AT commands............................................................................................8 2.2 Overview AT*C commands......................................................................................12 3 Technical data................................................................................................13 3.1 Electrical characteristics...........................................................................................13 3.2 Package................................................................................................................... 14 3.3 Description of the serial V.24 interface.....................................................................16 3.4 LED driver................................................................................................................ 16 3.5 Codec interface........................................................................................................17 3.6 Dimensioned drawing...............................................................................................18 4 History............................................................................................................19 Manual eviateg TA C4 • Version 1.0 3