The telephone is a unique invention whose task is to transmit sound at a distance. The history of the phone goes back to the distant past. There is evidence that in 968 a Chinese inventor created an apparatus called the thumtsein that transmitted sound through pipes. Even in antiquity, the so-called rope telephone was used. A rope was stretched between the two diaphragms and it was possible to talk at short distances. In this case, the sound was transmitted from one end to the other due to the vibrations of the rope.

But these were primitive telephones that transmit sound by means of vibrations. The history of the telephone that transmits sound thanks to electricity begins in the second half of the 19th century. The first to use the word telephone was Charles Bursel, in 1854 he published a dissertation in which he described the principle of the telephone, but it did not come to practical application.

The first device that could transmit musical tones (not voice, only tones) was invented in 1861 by the German physicist Johann Philip Reis. He named this device Telephon.

The world's first telephone designed for voice transmission was invented by Alexander Bell. He participated in a competition to solve the problem of sealing telegraph circuits and discovered the effect of telephony. And on February 14, 1876, he applied to the patent office for his invention. On the same day in Chicago, only two hours later, E. Gray, who also participated in a competition to solve the problem of sealing telegraph circuits, submitted a similar application. But since Alexander Bell was the first to apply, he received a patent for his invention. Therefore, the first person who invented the telephone is Alexander Bell.
history of telecommunication