... system 3.can be managed,updated remotely alarm & video & GPS all-in-one central monitoring station1 sub-platform′ server, motherboard ... worked with platform are made by us including 3G security , GPS-3G security, GSM alarm, 3G intercom , video alarm IP ... terminal,IP surveillance terminal ,wireless pinhole camera+DVR, car 3G+GPS terminal,emergency calling terminal,etc. So that platform′ server, ...