Large security monitoring companies have their own central stations, while smaller ones often use the services of third-party home security monitoring companies. These monitoring centers comply with the high standards set by the non-profit, independent Underwriters Laboratory. That is why their charges also are higher.
Sometimes the alarm goes off because the house owner trips the security system by mistake. He can, of course, correct the mistake by entering the password and switching off the alarm. However, the time available to do so is only 30 to 45 seconds.
Several security companies insist on a cell phone backup to filter out false alarms. This is because the control panel will alert the central monitoring station if the regular phone line is not working. The security center will first call up the key holder to check. The authorities will only be notified if it is found that someone has tampered with the phone line.
Keywords: Home Security