A communication system that is currently in use, there are many kinds, such as radio communication (Radio Communication), the Telegraph (Telegraphy) thonphim (Telex) telephone (Telephone) fax (Facsimile) or by radio (Pager) communications system, but is popular all over the world, it is because the telephone call could interact instantly fast events that other systems do not have phones, it has become extremely popular, and in the current world of telephone communication will indicate the progress. Glory of the country. There are various claims or specifications about the development of the country is that the countries which have the same number of phone numbers in 40 countries per 100 population numbers were considered to be the country with prosperity, or developed countries and any country that has a phone number or number 10 per 100 population, people assume that countries are being developed. To see how different countries around the world to focus on the telephone business is very much in the country, Thai. The word telephone was known since the rush 5, which corresponds to the word that Greek telephone Telephone with long distance and Tele Phone that translates to mean the discussion when a combination of translations, it refers to a conversation in the far distance, or send sound from one point to another point as needed.
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