Features are given of new private branch exchange on L M Ericsson's OS system with capacity of 2000 lines, which was installed in 1946 for Swedish State Railways replacing earlier equipment accommodating but 900 lines; note on history of use of telephone by Swedish railways.
New railway telephone plant at Stockholm Central Station
Ericsson Rev
Ericsson Review ; n 4
1946
7 pages
Article (Journal)
English
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