... the alarm calling) 7. Support alarm receiving center control the system arm or disarm. 8. Support 24H armed, delay armed ... in the local, but also can talk with the people. 2. system configuration (1) technical parameters Defence zone : wireless standard ... are Home PSTN/GSM Security Alarm System, 3G Alarm System, GSM Power Alarm, Video Monitoring system, Wireless Remote controller, RF Transmitter ...