... who are on spot .2.Eight wireless LED defense zone, four wired defense zone3.The system supports the GSM cell phones, no need the ... telephone line. 4.Can set HOME arm/AWAY arm 5.When alarming, system plays the recorded voice at first, call six phone ... on, 160pcs in total. 11.Send the SMS to GSM alarm system to program, it is very easy and quick to be ...