Bell Telephone refers to the Bell System of companies, led by the Bell Telephone Company and later by AT&T, which provided telephone services to much of the United States and Canada from 1877 to 1984. Bell Telephone may also refer to: Bell Telephone Company, several telephone companies with similar names Bell Telephone Building (disambiguation), various The Bell Telephone Hour, a long-running radio and television concert program A hypothetical device named after physicist John Stewart Bell which allows signals to be sent faster than the speed of light using quantum mechanics. See also Bell Telephone Memorial