... KS-868 For House Security Four Band GSM Alarm1*Dual-net (GSM&PSTN) for double protection2*Built-in GSM Module optional3*Built-in ... Features1). Support ADEMCO CID alarm center, Dialing voice , English SMS, Timer communication2). Modular cordwood design3). English message hint for ... operation and alarm.4). Different alarm ways to combine: center, SMS, dialing, Timer, etc5). Various ways of Arm/ Disarm, ...