DTMFDial 18.104.22.168 Emits DTMF tones including A, B, C and D using PC sound card. Features programmable memory, last 16 number redial and single instance tool-tray operation.
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DTMF Dial 22.214.171.124, It Dials! Our phones havent always dialed with tone that we are used to today. Before the sixties, that was pulse (and still IS in some places and countries), a series of clicks, which was about as many clicks as the dialed digit was. Tone dialing (correctly called Dual-Tone Multi-Frequency, or DTMF) is about an individual tone for each