Comprehensive plan for improved switching of long-haul toll telephone traffic in United States and eastern Canada; methods of designing toll plant to give adequate transmission efficiency for all connections established in accordance with this plan; new method of providing amplification at intermediate switching points replacing cord-circuit repeater method. (See also Am. Inst. Elec. Engrs. -- Jl vol. 49, no. 9, Sept. 1930 pp. 775-779, 6 figs; Telephony, vol. 99, no. 14, Oct. 4, 1930, pp. 14-20, 10 figs.)


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    Title :

    A general switching plan for telephone toll service


    Additional title:

    Bell System Tech. Jl


    Contributors:

    Published in:

    Publication date :

    1930


    Size :

    19 pages


    Remarks:

    12 Figs.


    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




    A general switching plan for telephone toll service

    Osborne, H.S. | Engineering Index Backfile | 1930


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    General toll switching plan

    Osborne, H.S. | Engineering Index Backfile | 1934