GSM + Camera alarm system bases on the GSM network 7 wired and 99 wireless defense zones;LCD screen with time clock display;3 groups of timely arm and disarm;Call 6 phones and send SMS to 3 numbers;10-second automatic message recording;Voice prompt for main unit & remote operations;Built-in artificial intelligent English message;The main unit can be used as a telephone;Arm, disarm, monitor, and ...