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DIY HACK – How to Make a DTMF Phone Dialer!

People have been making these DTMF phone dialer devices for years, here’s how to make one with a PIC microcontroller.

The company I work for recently upgraded their phone system. They got a new IP phone system that can supposedly do everything – the new phones have big LCD screens with fancy menus, lots of different modes, PC connection for remote control of the phone, e-mailing voice messages, and tons of other features. All that said, there was a critical piece missing from the

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