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> I.e. what do you do when phone/internet systems collapse?

I suspect the wired network in a city to be quite strong actually, since most of it is buried. For sure, you'd have lost connectivity to the rest of the world and internet, but setting-up a local telephone network using the copper wire network still standing doesn't sound that hard actually!



With the discontinuation of POTS, is the copper being used for some other purpose?


I don't know about Ukraine specifically, but DSL is still really important in Europe.




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