The major use of stepping switches was in early automatic telephone exchanges to route telephone calls.
12.
With the coming of the automatic telephone exchange in the early 1970s the houses were moved.
13.
In 1964, the new Automatic Telephone Exchange building was opened, adjoining and linked to the original Post Office building.
14.
During Soviet times in the city, ten automatic telephone exchanges were operational; six digital automatic telephone exchanges were recently added.
15.
During Soviet times in the city, ten automatic telephone exchanges were operational; six digital automatic telephone exchanges were recently added.
16.
The electromechanical automatic telephone exchange, invented by Almon Strowger in 1888, gradually replaced manual switchboards in central telephone exchanges around the world.
17.
The installation of the first elektromechanical automatic telephone exchange in Turkey was accomplished on October 23, 1931 making the switchboard operators superfluous.
18.
Previously in near proximity of the stock yards there was a postal depot, a general store and then an automatic telephone exchange.
19.
Collarenebri was among the last places in Australia to be converted from a manual switchboard to an automatic telephone exchange ( in 1986 ).
20.
In 1952 a new 2000 line automatic telephone exchange was installed in a new building at the rear of the existing Post Office on Howick Street.
