Telecommunications could be a general term for a massive array of technologies that send data over distances. Mobile phones, land lines, satellite phones and vocalization net protocol (VoIP) square measure all telephone technologies -- only one field of telecommunications. Radio, TV and networks square measure some additional samples of telecommunication. Whereas most of the people associate telecommunications with trendy technologies, the strict definition of the term encompasses primitive and even ancient varieties of telecommunication. Among these is that the use of smoke signals as a form of visual telegraph. Puffs of smoke were time-released by breathless a hearth with a blanket, then quickly removing and commutation the blanket. Wide utilized by the Yankee Indians, smoke signals may communicate short messages over long distances, assumptive a transparent line of sight.