Telephone Timeline By RayeAyriel26 Jul 15, 1874 Alexander Graham Bell conceives the theoretical concept for the telephone while vacationing at his parents' farm near Brantford, Canada. Jul 1, 1875 Bell uses a bi-directional "gallows" telephone that was able to transmit "indistinct but voice-like sounds" but not clear speech. Aug 10, 1876 Alexander Graham Bell makes the world's first long-distance telephone call. Sep 15, 1919 The first rotary dial telephones in the Bell System installed in Norfolk, Virginia. Jan 1, 1960 Bell Labs developed the electronics for cellular phones. Jan 1, 2005 Mink, Louisiana finally receives traditional landline telephone service.