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Contraband Cell Phones in Prisons, Possible Wireless Technology Solutions

December 29, 2010

NTIA, in coordination with the Federal Communications Commission (FCC), the Federal Bureau of Prisons (BOP), and the National Institute of Justice (NIJ), has identified and evaluated several technology solutions that can be used in a prison environment, including jamming, managed access, and detection techniques. This report presents a comprehensive overview and evaluation of those technologies.

FOR FURTHER INFORMATION CONTACT: Richard J. Orsulak, Emergency Planning and Public Safety Division, Office of Spectrum Management, National Telecommunications and Information Administration, U.S. Department of Commerce, 1212 New York Avenue, NW, Suite 600B, Washington, DC 20005; telephone (202) 482–9139 or email

  -   Notice of Inquiry (73KB pdf file)
  -   Comments Received

Related Reports
  -   NTIA Report TR-10-466 (May 2010), Emission Measurements of a Cellular and PCS Jammer at a Prison Facility (3.3MB pdf file)
  -   NTIA Technical Memorandum 10-468 (May 2010), Initial Assessment of the Potential Impact From a Jamming Transmitter on Selected In-Band and Out-of-Band Receivers (1.6MB pdf file)
  -   NTIA Report TR-10-465 (February 2010), Emission Measurement Results for a Cellular and PCS Signal-Jamming Transmitter