Moscow saw the first automatic telephone switch installed not sooner than in 1924, and that one was in the Kremlin.
The city automatic telephone switch started operation in 1930.
In 1881 the American Bell Telephone Company signed a 20-year contract with Russia on installation and operation of telephone networks in St. In the late 19th century for the former owner of a mechanical repair shop Lars Magnus Ericsson Russia was the biggest sales markethe even considered moving to St. Heres how Ericsson described it in the 1997 annual report: As early as the late 1890s, Ericsson had operations worldwideincluding countries such as China, Russia and Mexico.
One of Europes largest telephone stations owned by the Russian-Dutch-Swedish joint-stock company was located in the Milyutinsky by-street in Moscow (the building is still used as a call center).
After becoming aware that it was running out of words beginning with the needed three letters, New York introduced the LLN-NNNN format in 1930 with all the other cities following suit in 194748.
City telephone networks came into being and every phone set was assigned a number.For historical reasons zero was always used to call the operator.As a result, any American telephone number could start with any figure but 1 and 0.To reach a person beyond city bounds by phone, you would normally have to tell the operator the name of the city and a number.A telephone call used to be pre-ordered, which took some waiting.How they did it Americans who were to encounter the problem of 7-digit numbers sooner that any other nation, found a mnemonic solution to the problem (it was generally believed back then that 7-digit numbers were hard to memorize): the first three digits were replaced with letters some word started with.