Title :
The present and future of telephone transmission
Author_Institution :
American Telephone and Telegraph Company, New York, N. Y.
Abstract :
A review is presented of the progress and problems in the field of telephone transmission. The job of improving transmission while keeping costs low is divided into three main elements: instrumentalities, engineering, and maintenance.
Keywords :
Economics; Gears; Industries; Instruments; Repeaters; TV; Wires;
Journal_Title :
Electrical Engineering
DOI :
10.1109/EE.1956.6442063
