Commercial Fire Alarm Monitoring Systems Posted on August 10, 2020 by Joy Dice
![Commercial Fire Alarm Monitoring Systems](https://www.securityalarm.com/wp-content/uploads/2017/03/cell-monitoring.jpg)
For many years, fire alarm systems in the United States have been monitored via telephone lines. The process works like this: When an alarm goes off, the signal is sent through the phone line. A central monitoring station receives this signal. After the signal is received, emergency services are dispatched. These systems are monitored 24 […] Read More