A cell phone blocking program, also known as a cell phone jammer or cell phone jammer, is a device that blocks radio connections around it and interferes with the reception of radio signals by the phone. These devices are mainly used for military purposes, such as when releasing hostages, disarming bombs or starting military operations. The device is also used in companies to prevent the transmission of information for industrial espionage through cellular networks. Jammers have also been installed in the prison to prevent illegal use of smartphones. Disruptors will also establish their own undisturbed areas in unbanned areas, such as churches, movie theaters, theaters, and schools. gsm jammer have been used in many countries around the world.
