Device for acquiring information which is represented by a multi-frequency telephone code

摘要

Device for acquiring information which is represented in voice multi-frequency codes present at the output to the handset of a telephone instrument, comprising, in a housing, a tap circuit between an input connector and an output connector to the handset-instrument link standards, the circuit having a voice-frequency amplifier (22), a multi-frequency code decoder (24) and a microcontroller (26) linked to a display (28). IMAGE