The telephone or phone is a telecommunications device which is used to transmit and receive sound (most commonly voice and speech) across distance. Most telephones operate through transmission of electric signals over a complex telephone network which allows almost any phone user to communicate with almost any other.
History tells us that the telephone was invented by Alexander Graham Bell, a Scot who had moved to Canada and was living in Boston at the time of the discovery. Bell and his assistant, Thomas A. Watson, filed his patent prior to Elisha Gray to become the legal inventor of the telephone.
