The project utilizes a NTE1690 DTMF dialer chip and a PIC16F690 microcontroller in order to create a dialer box that connects to the phone and can be used to dial and store phone numbers, pins, and ...
That's the D-122 KXT-41 Tone Dialer. It costs less than $6. Why am I devoting service space to this product? Read on... On the independently-owned and run Vonage Forum, I've run across a fascinating ...
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