... will make audio call to these numbers automatically;u Can preset 3 SMS numbers: when alarming, ... arm, home arm, arm by remote controller or telephone;u SOS, fire, gas, door, hall, window, balcony ... , and boundary places alarm;u Real-time, delay, 24 hours, bypass defense zones ... number of the device is busy;u SMS alert for power failure or recovery;u Built-in LI battery ...