Invention of the telephone Invention of the telephone The invention of the telephone was the culmination of work done by many individuals, and led to an array of lawsuits relating to the patent claims of several individuals and numerous companies. The first telephone was invented by Antonio Meucci, but Alexander Graham Bell is credited with the development of the first practical telephone. The concept of the telephone dates back to the string telephone or lover's telephone that has been known for centuries, comprising two diaphragms connected by a taut string or wire. Sound waves are carried as mechanical vibrations along the string or wire
Reis telephone an advanced version where the iron bar is clamped to a cigar-box-shaped resonator. This receiver is not very sensitive. It produces weak sound but has good fidelity. It requires very high current and is a current-sensitive device rather than a voltage-sensitive device. This instrument could transmit continuous musical tones but produced indistinct speech. In 1865, however, British scientist David E. Hughes used the Reis telephone with "good results". Reis telephone The Reis telephone was an invention named after Philipp Reis of a telephonelike device he constructed. Reis's first successful work is dated to October 1861. In 1861, Philipp Reis succeeded