iVMS-4520 (iOS) mobile client software, which is designed for iPhone on the basis of iOS (Version 6.0 or higher), can be used to remotely operate absence arming, stay arming, disarming, clearing alarms and bypass functions on security control panel via 3G/4G/wireless network. It can be used to remotely monitor the live video from video security control panel, embedded DVR, NVR, network camera, network speed dome and encoder, play back record files, locally store and manage pictures and videos, manage alarm notification and information, control alarm output and realize PTZ control as well.