Actor portraying Alexander Graham Bell in a 1926 silent film. The single-port design required the user to alternately speak into and then listen through the same hole.
Oliver Lodge demonstrates wireless communication over a distance of 150 yards. This is the beginnings of cell phone technology.
The first coin telephone was installed in Hartford, Connecticut.
Edwin H. Armstrong invents the superheterodyne receiver circuit. Calls became clearer and faster.
AT&T agrees to breakup its Bell System telephone companies.