The invention of the phone, like any other important invention, was based on the efforts and experiences of the past, and the result of scientific and technical progress was a certain stage. The so-called some historians of science history, the phone also has ancestors.
One of these fathers or ancestors is Gauthey's voice tube, invented in 1782 and transmitted audio up to eight hundred meters away. The other was another hook phone that worked with yarn.
But the phone was invented in its evolution by American Inventor Alexander Graham Bell (1822-1918). The phone was able to send and receive messages without requiring a table like Morse's alphabet. By using the phone, people who float away from each other, almost as if they are facing each other, could talk. Graham Bell began studying deaf in the beginning, but later turned fully into science and technique. Bell in 1877 established Bell Telephone Association, which is still the largest phone company in the world. In the afternoon of June 2, 1875, on January 11, 1254, Graham Bell, in collaboration with his friend Watson, invented the phone and, in January 1876, Bell Telephone Company was established. March 10, 1876, he told his assistant in another room: Mr. Watson, let's work. The phone, after being fully invented by Bell, quickly spread and become universal and its wires were pulled from city to city. Fourteen years after the invention of the phone, in 1890, Estrog established an auto telephone system. In 1891, a telephone connection was established between London and Paris. The two continents of Europe and America were blocked by a network that was expanding day to day. On the day that Bell died (1922), his telephone connection to a wide network of 17 million phones was interrupted for one minute. Telegraph and telephone make quick and immediate communication between the points that can be wired. But since 1896, scientists have been able to communicate quickly and instantly between two points that were not even wired (a wireless telegraph, a telephone, or a telephone radio.
Phone in Iranian market
In the year 1265, with the year 1886, for the first time in Iranian market, a series of telephones between Tehran and Prince Abdul Azim, with a length of 7.8 km, was drawn by the Belgian Boeat, which had a Rey Rail Pass, but in fact the second phase of telecommunications technology started in the year 1889, 13 years after the invention of the telephone and entering it in Iranian market out of public marketing in Iran, by telephone between the two smoke-free stations of Tehran and Rey. Thereafter, a connection was established between Kamerania in the Shemiran area and the Ministry of War building in Tehran, and then between the Qajar royal palace at the former Royal Palace and the royal mansion of Tehran. The Ministry of Telegraph was named after the Ministry of Posts in the year 1908 AD and was called the Ministry of Post and Telegraph. In the year 1923, a contract for the construction of underground telephone lines was concluded with Siemens and Halsek Co., and three years later, in November 1926, a new telephone was launched on 2300 Kabul stations at Ekbatan center in Iranian market for Iranian costumers. In 1929, telephone services were also under the supervision of the Ministry of Post and Telegraph and were named after the Ministry of Post and Telegraph and Telephone. The phone centers of Ekbatan in 1937reached 6000 phone numbers and two years later it was exploited and in 1939 13 thousand numbers were developed in Iranian market. New phone lines or carriers were also exploited after September 1941, and telecommunication between Tehran and other cities was expanded, and telephone centers in Tehran were established one after another out of phone marketing in Iran. The Ministry of Posts, Telegraph and Telephone was renamed the Ministry of Communications and Information Technology in 2004.
Private telephone networks in Iranian market
The first private telephone network for marketing in Iran, was called Taliya. It was launched in the spring of 2005. The Taliya network, which offers the only mobile phone service, has been activated in the first phase of operation in Tehran and then was activated in the next phases in Mashhad, Isfahan, Tabriz, Fars, Qom and Ahwaz, and then due to expand Phone service marketing in Iran in other cities of Iranian market rooted.
Internet phone in Iranian market
It is a type of telephone connection that is made through an Internet service provider or Voice over Internet Protocol. VOIP is a voice transfer, via Internet Protocol (IP) and Internet Protocol (IP) packets. It is actually a set of hardware and software that enables us to use the Internet as a telephony interface. This method is cost effective for eliminating remote call centers from the call circle.
With the development of telecommunication technology in the world, the use of digital systems began in Iranian market around 1989. The telephone industry for marketing in Iranian has progressed dramatically, as in 1999, in terms of the annual growth rate of fixed telephone networks, it ranked fifth among the countries of the world.
The latest technology in the telephone industry is the mobile phone (mobile / cellular), launched in 1994 due to marketing in Iran. The use of mobile phone in comparison with fixed telephone has a very upward and mutated trend and it has been around 65% between 1995 and 1999 and from 16 thousand numbers in 1995 to 490 thousand in 1999.