Wireless GSM Alarm System: Scene monitors Support GSM / CDMA mobile phones Set 5 telephone number Remote control outputs Functions GSM 850/900/1800/1900 BANDS ALARM BASE FOR THE WORLD FULL DUPLEX COMMUNICATION WITH THE BASE MONITOR LIVING SURROUNDINGS VOICE AND MESSAGE ALERT SET ALARM ON OR OFF BY CONTROLLOR CALL IN SET ALARM ON,OFF,MONITOR,OUTPUT SEND SMS TO SET ALARM ON,OFF,MONITOR,OUTPUT 5 ...