Methods for identifying wireless devices connected to potentially threatening devices

摘要

Techniques for determining whether a cellular device is suspect, i.e., perhaps serving as an activator for a device such as a bomb. One way of doing this with cellular telephones that are in the idle state is to use a baiting beacon to bait and automatically call all the cellular telephones in an area that are in the idle state. If the call to a given cellular telephone is not answered by a human voice, the cellular telephone is suspect. Another way of doing this with cellular telephones that are in the traffic state is to use surgical analysis to examine the DTX pattern for the telephone. If it indicates persistent silence, the cellular telephone is suspect. The surgical analysis may also be used to trace the DTX pattern back to another telephone that is controlling the suspect cellular device.

主权项

1. A method of a surgical neutralizing system, including a receiver and signal generator, determining whether a cellular telephone which is in an idle state is configured to operate as an activator whereby it can respond to a telephone call but has been disabled from transmitting voice signals, the method performed by the surgical neutralizing system comprising the steps of:
establishing a baiting beacon with which the cellular telephone will register, and upon registration, automatically performing the steps of placing a telephone call to the cellular telephone by the baiting beacon; if the telephone call is answered and the cellular telephone transmits voice signals, determining therefrom that the cellular telephone is not configured as an activator; and if the telephone call is answered and the cellular telephone does not transmit voice signals, determining therefrom that the cellular telephone is configured as an activator.