CJAM-CPC, designed from a cellular testing system, is a new way to tackle contraband cell phone use in prison. CJAM-CPC can control and put a stop to cell phone use within a single building, reducing incidents of crime and fraud. The CJAM-CPC system offers a comprehensive software and hardware system that works with both CDMA and GSM communication.
The system uses reverse and forward channels with RF receivers and signal generators to monitor and interact with cell phones. The CJAM-CPC can be synchronized with the GSM and CDMA networks through testing, and using an integrated GPS receiver, can fire precisely timed signals.
The CJAM-CPC is in a self-contained structure, connected to the network via built-in Ethernet ports. The system includes its own keyboard and screen and can be deployed as required.
The CJAM’s Distributed Antenna System, or DAS, can cover any size building and, centrally located, can cover any number of buildings over the facility grounds. It can also be combined with the CJAM-DT cellular location system and CJAM-NF cellular jamming system to take care of all cellular security issues in one DAS deployment. This figure illustrates how the system works.
The CJAM-CPC can be used to control the use of illegal cell phones in correctional facilities.
Features of the CJAM-CPC system
- Covers all standard cellular bands (450/850/900/1800/1900/2100 MHz; Standard: 800/1900)
- Includes GPS receiver for cell phone tracking and mapping features
- Determines the number of cell phones operating in a certain area and MIN, ESN, PRN, PRL for CDMA
- Provides lists of cell phones in each area including the cellular service provider
- Can send SMS to any cell phone in a particular area
- Can call each cell phone
- Can exclude from monitor
- Can disable the SIM of any cell phone in a particular area until the power is recycled
How CJAM works
The CJAM-CPC controller and operator console are linked to the in-building DAS which propagates the cellular uplink and downlink RF signals all over the prison. Since cell phones are designed to connect to the nearest antenna with the strongest signal, all contraband cell phones will automatically connect to the DAS. Once connected, the CJAM-CPC can monitor the frequencies and detect and identify any contraband cell phones with an identification number.
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Cellular Control – CJAM CPC Cellular Detection and Control System
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