... TEL&GSM Dual Network Alarm System, With 8 Wired Zones and 32 Wireless Zones Wireless TEL&GSM Dual ... Network Alarm System, With 8 Wired Zones and 32 Wireless ZonesTELEPHONE+GSM Dual Network,If ... signal shielded, it alarms through telephone line,8 wired/32 wireless zones,6 group alarm ... inidcating,power failure alarm,auto switch between telephone and GSM network, keypad anti-rob function. Wireless ...