QNAP Security VioStor NVR (Version: 4.1.2) - Manual (Page 129)

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If the NVR is has not been configured yet, the Quick Configuration page will be shown.
Follow the instructions to finish the setup.
The functions of the buttons on the configuration page are described below:
Return to the monitoring page
Playback the videos
View the on-line help
Logout the NVR