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
Condenser telephone (copper or steel) circuit for both legs of the circuit. This basic telephone circuit was known as a Buzzer, or more commonly, a Condenser Telephone Circuit. A patent registered by François van Rysselberghe (1846-1893) in 1882 is thought to be the original invention of the basis of the phonopore (condensor) method. The technique was developed and improved by Charles Langdon-Davies in 1890, particularly with the invention of a method to call between phones Patents were lodged for improved versions of instruments for commercial use including one lodged by Ellis F Frost in 1902. The system worked over a single aerial