... 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 TEL failure, it ... signal shielded, it alarms through telephone line,8 wired/32 wireless zones,6 group alarm phone numbers.when alarms ... Alarm System, With 8 Wired Zones and 32 Wireless Zones