Burglar Alarm InformationThe police have been inundated with erroneous telephone calls from security systems. Therefore, most cities have ordinances against programming automatic dialers to call 911. Instead, they must call the professional security company that maintains the system.
Many home alarms have sirens or horns that can go off if the wind blows a window shade, or a pet walks through a protected space. These sounds annoy neighbors, so many communities have outlawed such external noisemakers.