http://www.jammer-buy.com/blog/n-30.html
As for prisons, we are pushing for more radical measures. In this case, the authorities decided to design installation, equipment necessary wave on the mobile phone of scrambler telephone communication. This solution of POA union supporters, for example, don't hesitate to remind the phone and SIM card last year more than 7000 points in wales and England's prison was confiscated. "Mobile phone jammer for POA, all should be equipped with handheld mobile jammers and all prisoners should be prosecuted", to think the organization.

That position was recently taken in France by the UMP of the UMP, francois cornett, who claimed that last march "the installation of the airwaves interfered to contain the launch of illegal cell phones in prison". He was elected, though he still did not receive a written inquiry from the attorney general. According to remind anyway, this type of solution, regular, often facing practical problems: areas of action, it's sometimes difficult to grasp, for cost can be "the management of the burden of proof.

Should be installed where the only portable jammer some of the local religious temple or church, of course, big companies if they think time is money, employees may not use cell phones so they should work. GSM jammers can also be installed in some large theatres and cinemas for private or concerts.

http://www.jammer-buy.com/blog/n-29.html