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The master telephone patent granted to Bell, 174465, March 7, 1876. The modern telephone is the result of the work of many people. [10] Alexander Graham Bell was, however, the first to patent the telephone, as an "apparatus for transmitting vocal or other sounds telegraphically".
3 April 1930: Opening of transoceanic telephone service to Argentina, Chile, and Uruguay and subsequently to all other South American countries. [23] 1931: The Ericsson DBH 1001 telephone was the first telephone without a separate ringer box. [32] 25 April 1935: First telephone call around the world by wire and radio. [23]
Telephone technology grew quickly after the first commercial services emerged, with inter-city lines being built and telephone exchanges in every major city of the United States by the mid-1880s. [ 17 ] [ 18 ] [ 19 ] The first transcontinental telephone call occurred on January 25, 1915.
A mobile phone or cellphone or hand phone is a handheld telephone which connects via radio transmissions to a cellular telephone network. The cellular network consists of a network of ground based transmitter/receiver stations with antennas – which are usually located on towers or on buildings – and infrastructure connecting to the global ...
The Reis telephone was an invention named after Philipp Reis of a telephone-like device he constructed. Reis's first successful work is dated to October 1861. It was the first device to transmit a voice via electronic signals and for that the first modern telephone. [1] [2] Reis also coined the term. [3]
The third and most important test was the world's first true long-distance telephone call, placed between Brantford and Paris, Ontario on August 10, 1876. [ 53 ] [ 54 ] For that long-distance call Alexander Graham Bell set up a telephone using telegraph lines at Robert White's Boot and Shoe Store at 90 Grand River Street North in Paris via its ...
A satellite phone is a type of mobile phone that connects to other phones or the telephone network by radio link through satellites orbiting the Earth instead of terrestrial cell sites, as cellphones do. Therefore, they can work in most geographic locations on the Earth's surface, as long as open sky and the line-of-sight between the phone and ...
Gardiner Greene Hubbard, first president and a trustee of the Bell Telephone Company, and father-in-law of Alexander Graham Bell. At the time of the organization of the Bell Telephone Company as an association (also known as the Bell Company), on July 9, 1877, as a joint stock company in 1877 by Hubbard, [8] [13] who soon became its trustee and de facto president, 5,000 shares in total were ...