History of the Telephone By diesel18 Period: Jan 1, 1945 to Feb 6, 2015 History Of The Telephone Dec 1, 1947 Engineers proposed hexagonal cell transmission for mobile phones Feb 6, 1950 Rotary Phone Feb 6, 1963 Bell Labs created the electronics for cellular phone Feb 6, 1970 Modular telephone cords and jacks introduced Feb 6, 1980 Brick Phone Feb 6, 1980 The worlds first fully automatic mobile phone system "NMT" is started in Sweden in Norway Feb 6, 1990 Caller ID implemented nationally in USA Feb 6, 2000 Mobile phone Feb 6, 2015 Smart Phone