... users. 13. With IR night vision camera, it provides full time 24 hours day and night monitoring function. GSM Network ... the local, but also can talk with the people. 2. system configuration (1) technical parameters Defence zone : wireless standard equipment ... are Home PSTN/GSM Security Alarm System, 3G Alarm System, GSM Power Alarm, Video Monitoring system, Wireless Remote controller, RF Transmitter/ ...