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Build a Phone Tapping Device at home

How to transform the PC into a phone conversation tape recorder.

You can record telephone conversations on your computer using a simple cable connecting the modem to the sound card.

Modems have an output channel called TAD which can be used to connect the modem to the sound card, through a cable similar to the one used in the connection of CD-ROM drive to the sound card.

If you are on a broadband connection (no modem), you need to assemble the circuit (see graphic) illustrated by Gabriel Torres.

Connect the circuit to the phone line on one side and to the Mic In channel of the sound card on the other. To record conversations, you will need a recording program, like Sound Forge.