Alarm.com‘s dedicated wireless signaling delivers complete protection, even if the phone or internet line is cut, the power goes out, or the control panel is damaged. The Alarm.com wireless radios, powered by the control panel’s backup battery , will continue to operate for 24 hours during a power outage. Also, unlike other systems, Alarm.con can detect a Crash & Smash event in progress and immediately alert the central station of the possible alarm event, even if the security control panel is destroyed