DTMpro is a software application that allows you to send DTMF tones from the PC sound card. It has buttons, supports paste and cut.
Dual-tone multi-frequency (DTMF) signaling is still in widespread use.
Use this program to signal and testing of DTMF, to enable DTMF to older phones or to open a Echolink repeater. Just hold the mic in front of the PC speakers and push the buttons.
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