Telecommunications is a general term for a vast array of technologies that send information over distances. Mobile phones, land lines, satellite phones and voice over Internet protocol (VoIP) are all telephony technologies -- just one field of telecommunications. Radio, television and networks are a few more examples of telecommunication.
While most people associate telecommunications with modern technologies, the strict definition of the term encompasses primitive and even ancient forms of telecommunication. Among these is the use of smoke signals as a kind of visual telegraph. Puffs of smoke were time-released by smothering a fire with a blanket, then quickly removing and replacing the blanket. Widely used by the American Indians, smoke signals could communicate short messages over long distances, assuming a clear line of sight.
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