Fundamental plans for toll telephone plant

journal article
Published by Institute of Electrical and Electronics Engineers (IEEE) in Transactions of the American Institute of Electrical Engineers, Part I: Communication and Electronics

Vol. 71 (4), 248-256
https://doi.org/10.1109/TCE.1952.6371854

Abstract

THIS paper covers the general switching plan and fundamental plant layout proposed for handling telephone toll messages throughout the United States and Canada using automatic toll switching.

Keywords

SWITCHES
SWITCHING SYSTEMS
JOINING PROCESSES
ROUTING
IEEE TRANSACTIONS
COMPANIES

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