SIGNAL DETECTION AND BLOCKING FOR VOICE PROCESSING EQUIPMENT

A telephone call processor for processing telephone calls comprising voice signals and data signals, the call processor comprising a first telephone interface and a second telephone interface, the call processor being operable in a first mode and in a second mode, wherein: in the first mode, the call processor is adapted to receive voice signals and data signals at the first telephone interface and to transmit voice signals and data signals to the second telephone interface; and in the second mode, the call processor is adapted to receive voice signals and data signals at the first telephone interface, to process the data signals and to block data signals from being transmitted to the second telephone interface and not to transmit voice signals to the second telephone interface