I am from South Africa and a keen business man. I am looking into becoming an ISP and have been exploring various options. I have seen that there was a company in a different city that has antenna's all over and you buy a modem and an internet data package and it works wirelessly if you will. How is this done and how can I set something like this up?
Take a look at the information on the Ubiquiti Networks pages ( http://www.ubnt.com/ ). They are one of the companies that produces equipment for setting up small commercial wireless ISPs and they have all sorts of information and training materials.