Patent ID: 8340252

Claim:
An apparatus for detecting surveillance devices on a telephone line comprising: a case having at least one line input, at least one line output, a communications output, and a controller; the controller having a central processing unit and a memory storage and configured to: (a) instruct a test signal to be transmitted to at least one user-selectable line; (b) compare a test signal response from one of the user-selectable lines with a baseline signal response; (c) report a change in the line state of one of the user-selectable lines when the difference between the test signal response and the baseline signal response exceeds a threshold; and (d) issue a countermeasure based upon countermeasure settings; and a switch matrix, the switch matrix configured to inject the test signal into the at least one of the user-selectable lines, break a connection with at least one of the user-selectable lines, extract the test signal response from at least one of the user-selectable lines, and terminate a connection with one of the user-selectable lines when the controller issues a termination command.