... failure, like network failure or signal shielded, it alarms through telephone line,8 wired/32 wireless zones,6 group alarm phone ... or the alarm monitor center or dail your preset telephone no. or mobile phone no, with setting keypad on board,timing arm or ... function, low power inidcating,power failure alarm,auto switch between telephone and GSM network, keypad anti-rob function. Wireless TEL&GSM ...