Title: Invention of the telephone - Wikipedia
Headings: Invention of the telephone
Invention of the telephone
Contents
Early development
Charles Grafton Page
Innocenzo Manzetti
Johann Philipp Reis
Antonio Meucci
Chronology of Meucci's invention
Cyrille Duquet
Electro-magnetic transmitters and receivers
Elisha Gray
Alexander Graham Bell
Bell's success
Public demonstrations
Early public demonstrations of Bell's telephone
Three great tests of the telephone
Later public demonstrations
Summary of Bell's achievements
Variable resistance transmitters
Water microphone – Elisha Gray
Carbon microphone – Thomas Edison, Edward Hughes, Emile Berliner
Improvements to the early telephone
Telephone exchanges
Controversies
Memorial to the invention
See also
References
Further reading
External links
Patents

Content: which means that there was an electrostatic effect. In order to continue the experiment without hurting his patient, Meucci covered the copper wire with a piece of paper. Through this device he heard inarticulated human voice. He called this device "telegrafo parlante" (litt. " talking telegraph"). On the basis of this prototype, Meucci worked on more than 30 kinds of sound transmitting devices inspired by the telegraph model as did other pioneers of the telephone, such as Charles Bourseul, Philipp Reis, Innocenzo Manzetti and others. Meucci later claimed that he did not