... History4. 30 wireless zones + 8 wired zones, every zone attribute, name, bypass, alarm delay, intelligent door sensor function, ... , GSM SMS6. Alarm SMS include alarm zone and sensors name7. Work with Contact ID protocol(alarm information, status information ... Dual-network wired&wireless alarm system ,pstn and gsm alarm system KT-G8A Dual-network wired&wireless alarm system ,pstn and gsm alarm system