The cell phone has spread quickly in several years. Why did the cell phone spread like this?
Firstly, it is improvement in the function of a cell phone. Even if it does not look for a public telephone, it is the convenient point of a cell phone that you can telephone on that spot. However, there were many inconvenient points, like there are many places which cannot talk over the telephone at the beginning when the cell phone was put on the market. A cell phone company is solving such a problem, and aimed at the expansion of a user. Moreover, the main part of a cell phone also devises a design, and came to be received not only in a businessman but in the large generation by attaching the function of an E-mail or a game ware.