The Telezapper is a telephone accessory that detects and blocks telemarketing calls that are made with a computerized auto-dialer. As soon as the user picks up the phone, the device notifies the auto-dialer that the line is disconnected. The signal the Telezapper sends to the dialer to block the call also reassigns the number to a list of disconnected numbers. All you need to do to use your Telezapper is connect it between your phone cord and your phone jack. Writer Bio
