security device that can detect taps anywhere on the local
phone line and at the phone company switch.
your phone conversations from eavesdroppers, defeat voice
activated recorders with simulated noise
Tele-Data Guard keeps your calls private … and more.
You Make Calls in “Normal” or “Secure” Mode and Jams any Listening
Devices Which Use the Telephone Line to Listen to Your Room
device to detector a wiretapped/bugged phone line
Incoming and Outgoing Call Information