Mobile Phone Jammer

A mobile phone jammer is an instrument used to prevent cellular phones from receiving signals from base stations. When used, the jammer effectively disables cellular phones. These devices can be used in practically any location, but are found primarily in places where a phone call would be particularly disruptive because silence is expected.

Read more about Mobile Phone JammerHistory, Operation, Legalities

Other articles related to "mobile phone jammer, jammers, mobile phone jammers, mobile":

Mobile Phone Jammer - Legalities
... Since these jammers actively broadcast radio signals, they may or may not be legal to possess or operate based on the specific laws of the area one is in ... During major end of year exams, mobile phone jammers are used in areas surrounding high schools to prevent students inside from receiving calls or text messages, which may be used for ... In some municipalities however, rather than the use of jammers, mobile signal towers close to schools are temporarily shut down for the duration of the week as exams ...

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