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A magnetic sensor (window sensor, door sensor) detects open and close of a window or a door and notifies to the home server if it is registered at the home server. Then the home server records the video from the camera and makes a phone call to the registered phone number. The notified person (owner) can hear the sound from the home via the home server or can talk to the burglar in the home. Also, he can turn on or off the siren/lamp remotely by the telephone via the home server.
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