Our lives have been completely changed with the invention of the telephone. No one person can really be credited with inventing it, though 
Alexander Graham Bell is acknowledged as the father of the modern telephone. Simply described, the telephone is a system which converts sound, specifically the human voice, to electrical impulses of various frequencies. These electrical frequencies are then turned back to a tone that sounds like the original The foundation for today’s telephone was laid in 1831, when an Englishman Michael Faraday, proved that vibrations of metal could be converted to electrical impulses. A practical telephone was actually invented independently by two men working in the United States, Elisha Gray and Scottish – born Alexander Graham Bell. Incredibly, both men filed for a patent on their designs at the New York patent office on February 14, 1876, with Bell beating Gray by only two hours!According to the famous story, the first fully intelligible telephone call occurred on March 6, 1876, when Bell, in one room, called to his assistant in another room. ‘Come here, Watson, I want you.’ Watson heard the request through a receiver connected to the transmitter that Bell had designed.