In Mobile communication, how do cell sites communicate to each other to the point when they reach the cell site which is connected to the other mobile phone when I make a call . What is the medium of communication (optic fibre or microwave links)?
closed as too broad by Scott Seidman, Leon Heller, brhans, Harry Svensson, Dmitry Grigoryev Sep 14 '18 at 7:20
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What is the medium of communication (optic fiber or microwave links)
It can be either, or a even a copper based cable.
It depends on what is most convenient in a certain situation. On top of a mountain or a building a microwave link would probably be the most suitable (cost effective). But if that building already has fiber connections to elsewhere, that might be more cost effective.
So, there is no answer like: Every base station is connected through a microwave link as that isn't true. It depends on the circumstances.