... 3.can be managed,updated remotely alarm monitor CMS & video surveillance all-in-one central station 1 sub-platform′ server, ... -3G security, GSM alarm, 3G intercom , video alarm IP camera, CMS terminal,IP surveillance terminal ,wireless pinhole camera+DVR, car 3G ... million clients. Our system can upload and download video synchronously. alarm monitor CMS & video surveillance all-in-one central station