I called GE something or other to have an alarm system installed which was a sub contractor of Monitronic Alarm Co. I live in a river bottoms of a large river and have intermittent phone service so I asked if they had a system that worked off a cell phone. They told me that yes they did and that they had a Simon XT system that would be compatible with that. The Installer came out and installed the main system in the front house and only a door sensor in my apartment and I'm the one paying for the system. I asked him where the control pad... read full review »