Commercial fire alarm systems are monitored as a life safety law to call the fire department and alert the building owners. I used them for 6 years on one commercial center and they were just okay - the headquarters and monitoring center is in Southern California and they are tied to Reno and Las Vegas offices, as well as others. I recently had my system inspected and THEY STOPPED MONITORING IN JUNE 2016 although I had been charged for all of 2016 and had a contract with them. It turns out the radio channels had to be changed and all the other companies told their customers and arranged (for a charge) to change the radios. They never told me and never reported the loss of signal from the location. For six months no one would have dispatched the fire department and I was in violation of my building insurance. When I found out - and replaced them - they admitted they hadn't bothered to notice the lack of monitoring for 6 months and offered a 3 month discount if I bought new radios and renewed with them! I made a number of calls and wrote a letter - I just got bounced from one office to another. read more