World Of Mobile & Telecommunication.

Mobile phone usage for the traveler can sometimes be a bewildering affair. This is due to the preponderance of various differing -- and incompatible -- mobile systems, often delineating entire continents or regions. The main systems in use are outlined below. The purpose of this discussion is not to delve much into the technical aspects of each system -- that sort of thing can easily be found elsewhere on the web. Rather, here we'll focus more on where these systems are used and factors important to travelers.