sabari Posted March 23, 2018 Report Share Posted March 23, 2018 Telecommunications has grown very big in the short period of time, lets start from the beginning its cost efficiency so hard to buy a telephone connection at home, then we get cell phones its again costly only few peoples can hold and its help people to people for privacy compare to telephone. But now we have smart phones even its cost is less so almost 70% of people from world are using cell phones. Quote Link to comment
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