... will use GSM and have capability for land line where GSM is not possible 12) Also support 8 more wired ... better. 2) DOOR CHIME, This is when the system is disarmed only. When a door is opened, it will sound fast “ ... bi bi bi”, 3) READY TO ARM, This is when the alarm will know if a door was left ... screen should say: ARMANYWAY? 4)The kit price on right hand is based on GSM net, for Dual-net GSM+PSTN, ...