DTMF Decoder is a very easy to use program to decode DTMF dial tones found on telephone lines with touch tone phones. DTMF Decoder is also used for receiving data transmissions over the air in amateur radio frequency bands.
“Live” tone signals are fed from telephone line or radio into soundcard of computer. Either line- or microphone input jack is used. It is highly recommended to ensure galvanic decoupling between PC and telephone line or radio receiver. DTMF Decoder output is clear text consisting of the symbols. An exact log is displayed; when, which number was dialled. This log is automatically stored into a log file for later exploration.
