If total telephone line security is important to you, then you need this device!!! This unit will disable automatic recording devices, line transmitters, wiretap or any other voltage-activated device. This unit will also disable voice activated recorders by causing them to run continuously and run out of tape. This unit requires no batteries and will run on most phone systems. Hooks up with modular connectors for simple plug and play operation.
(This unit will not work with bugs installed on another party's line.)