Who is widely credited with inventing the first practical telephone? Nikola Tesla Thomas Edison Alexander Graham Bell Guglielmo Marconi None In what year was the first successful telephone call made by Alexander Graham Bell? 1233 1876 2010 1985 None Which of the following inventors also claimed to have invented the telephone, leading to a famous patent dispute? Elisha Gray Samuel Morse Heinrich Hertz Michael Faraday None What was one of the first major companies to develop and market telephones to the public? Western Union AT&T (American Telephone and Telegraph Company) RCA (Radio Corporation of America) Bell Labs None What innovation in the early 20th century significantly improved long-distance telephone communication? Fiber-optic cables Rotary dial phones Satellite communication Vacuum tube amplifiers None Time's up
