. The Bell System technical journal . FUNDAMENTAL ROUTESOF GENERAL PLAN SUPPLEMENTARY DIRECTCIRCUIT GROUPS. Fig. 23—Application of the toll switching plan to the country as a whole. fore, any two toll centers in the area can be connected together with amaximum of two intermediate switches. The primary outlets foreach area were selected after a careful study of present switching andoperating conditions. Due weight also was given to the probablefuture trends. The number and location of primary outlets selected 60 for each operating area were designed to give maximum economyconsidering both prese

GLIX-115-2CRTRXT

. The Bell System technical journal . FUNDAMENTAL ROUTESOF GENERAL PLAN SUPPLEMENTARY DIRECTCIRCUIT GROUPS. Fig. 23—Application of the toll switching plan to the country as a whole. fore, any two toll centers in the area can be connected together with amaximum of two intermediate switches. The primary outlets foreach area were selected after a careful study of present switching andoperating conditions. Due weight also was given to the probablefuture trends. The number and location of primary outlets selected 60 for each operating area were designed to give maximum economyconsidering both prese
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. The Bell System technical journal . FUNDAMENTAL ROUTESOF GENERAL PLAN SUPPLEMENTARY DIRECTCIRCUIT GROUPS. Fig. 23—Application of the toll switching plan to the country as a whole. fore, any two toll centers in the area can be connected together with amaximum of two intermediate switches. The primary outlets foreach area were selected after a careful study of present switching andoperating conditions. Due weight also was given to the probablefuture trends. The number and location of primary outlets selected 60 for each operating area were designed to give maximum economyconsidering both prese

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