How Can City Street Cameras Use IP Cameras?

I was recently talking to a local Detective and he told me that the cameras at the intersections in our town are terrible, and you can see very little details. So I started thinking about why they dont use IP cameras, but then I realized that there probably is no easy way to have all the cameras from around the town communicate. You would have to run a network run either to one central location (way more then the limit) or to local internet locations. But if you do the second way, they probably cant record proprely with remote NVRs. Is there a solution to allow this?

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