... Alarm System Features Business GSM PSTN phone line Alarm Security System:1. Dual-network(GSM and PSTN)alarm function 2. 8/16 wired and 32 wireless ... number 6. Out arm, perimeter arm, single arm, delay and remote arm 7. Real-time, delay, 24 hours, perimeter and ... 9. Record 20-second audio for voice-alarm 10. Remote control to arm, diarm, emergency alarm, monitor, telephone line checking 11. Password ...