Think the current communication technology has several channels, such as speaking, any act of watching, more human, we use the device to communicate that carry more and more. Starting from the radio call (Pager).Until nowadays have been created and developed for use in the other side of the communication technology more and more. But the popular people around the world is the phone can talk through sound, including portable พูดคุยผ่าน VDO CALL.(FACE TO FACE) so in the world, we need a quick communication, multiple channels, which ระบบในปัจจุบัน develop and enhance better and beneficial in various fields have completely.
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