This paper outlines a comprehensive plan for improved switching of long haul toll telephone traffic in the United States and eastern Canada. A brief discussion is given of the methods of designing the toll plant to give adequate transmission efficiency for all connections established in accordance with this plan. This includes a new method of providing amplification at intermediate switching points replacing the cord circuit repeater method.
Abridgment of a general switching plan for telephone toll service
Journal of the A.I.E.E. ; 49 , 9 ; 775-779
01.09.1930
1132959 byte
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
A general switching plan for telephone toll service
Engineering Index Backfile | 1930
|A general switching plan for telephone toll service
Engineering Index Backfile | 1930
|A general switching plan for telephone toll service
Engineering Index Backfile | 1930
|Standard switching plan for telephone toll service
Engineering Index Backfile | 1931
|Engineering Index Backfile | 1934
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