Because the call is acknowledged as communication tools that are essential to life. Thus, the telecommunication system is an important infrastructure to support the country's economic development and can make the population access to information quick and easy. Because they have access to all areas. In addition, the current mobile phones have changed plaengklai to become part of everyday life and are also widely used. The phone has been developed from the original. In addition, fast communications, the phone can also use the. You can identify the 2 types are generic functions in the call is the call-answer would be black and white or color, mobile, smart phone, or the phone is smart and can do everything (he will taste the glory Holy peace, d.SC., 2011.)
การแปล กรุณารอสักครู่..