How Does a Phone Bug Work?
The Premise Phone bugs tap into phone lines, allowing users to eavesdrop on conversations. Whenever a phone call is made, voice between both parties is converted into electricity and passed along the phone lines–from one phone to the other. The phone bug converts the electric current back into voice for monitoring and recording. The Infinity Transmitter The infinity transmitter–the most efficient and commonly used phone bug–can eavesdrop on a conversation with the phone still on the hook. The listening party connects the positive and negative copper leads of the bug to any point on the targeted line. The listener dials the targeted number to open the line. The phone’s ring is ended by a specific tone, which can be duplicated by a pitch harmonica or the transmitter. The transmitter keeps the line open and activates the phone’s microphone or uses its own highly sensitive microphone to listen in on sounds in the room. Callers to a line being bugged receive a busy signal. Other transmit
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