... of use. l Support dual-network of both PSTN landline and GSM mobile network, provide redundancy for extra stability. l ... including NORMAL, STAY, INTELLIGENT, EMERGENCY, CLOSED, HELP SENIOR, WELCOME and CHIME. l Four sets of scheduled arm/disarmed function, each ... period of time and different defense zone, eliminating of need of the manual procedure, realizing the beauty of automatic controls.l Support ...