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Can you tell more?
I need to install 50 cameras in the factory, can I take 2 NVRs at 25 ch * 5 MP and connect 25 cameras to each of them, and then bring to 2-3 guard posts, each of which has one monitor, all video cameras at once from two NVR?
What would you be able to view the history of records from video cameras, and there was an opportunity to double-click to enlarge the image from the substream to the main stream of 5 MP?
It is also necessary that sometimes the manual could, from 1-2 phones, watch videos from cameras, with the possibility of increasing to the main stream, viewing recordings from cameras, etc. Phones on iOS.