GSM Cellular Backup Module

Thieves can cut the phone line outside the building to disable the alarm system and then break in to the premise. Your alarm system relies on the phone line to transmit signals to the central monitoring station. Without the phone line, the monitoring station is unable to know that anything is wrong at all. Alarm panels only send signals if there is an alarm or a trouble. If everything is OK, the panel doesn't send anything. When no signals come in, the monitoring station assumes that everything is OK.

 The only way to protect yourself against line cut, is to add a GSM module to your existing alarm system. With a GSM module, if your phone line is cut, the module takes over from the phone line and continues to transmit all signals normally using GSM network (digital cellular network). GSM modules are designed to work with existing alarm systems.