On March 10, 1876 Alexander Graham Bell's request for his assistant to come into the room became the first words recorded as heard over a telephone. A patent race with Elisha Gray, and Antonio Meucci's earlier claim, are still argued. The episode follows the Bell System's rise and Theodore Vail's bargain of universal service, its women operators, and the copper landline now being retired.
Who invented the telephone remains disputed among serious historians, with cases for Bell, Gray and Meucci, and no agreement on who reached the Patent Office first. Whether monopoly or competition spread the telephone faster is open, as is whether fiber and wireless can match copper in emergencies.