... the alarm calling) 7. Support alarm receiving center control the system arm or disarm. 8. Support 24H armed, delay armed , ... 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 ...