GSM Passive Cellular Phone Interceptor

This is a fully programmable multi-channel 900 MHz-1800 MHz GSM monitoring, listening and recording system for cellular phone interception and monitoring of mobile communications. This digital receiving system is completely transparent in operation to the service provider, maintaining optimum confidentially for the operator. The multi channel system is capable of monitoring several targets simultaneously,…….

http://www.mdicanada.ca/GSM%20Passive%20Cellular%20Phone%20Interceptor.pdf

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