Title :
Automatic toll switching systems
Author_Institution :
Bell Telephone Laboratories, Inc., New York, N. Y.
Abstract :
The new system was designed to implement the nation-wide switching plan which integrates the telephone switching network of the entire nation into a single unit. Requiring a high order of mechanical intelligence, this system is one of the most comprehensive ever devised.
Keywords :
Decoding; Relays; Routing; Speech; Switches; Switching systems;
Journal_Title :
Electrical Engineering
DOI :
10.1109/EE.1952.6437728
