This paper described the telephone toll system in the region within a radius of about 50 mi. from Chicago. In this system have been established 21 toll centers at which are handled the toll traffic of their own exchanges and 95 other exchanges in the area. Descriptions are given of the toll plan and the toll plant, methods of handling toll calls, volume of traffic handled, etc. A most important consideration is the very rapid growth taking place in toll-service requirements in this region.


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    Titel :

    Telephone toll plant in the Chicago region


    Beteiligte:
    Smith, Burke (Autor:in) / West, G. B. (Autor:in)

    Erschienen in:

    Journal of the A.I.E.E. ; 47 , 1 ; 43-48


    Erscheinungsdatum :

    01.01.1928


    Format / Umfang :

    1732809 byte




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



    Telephone toll plant in the Chicago region

    Smith, B. / West, G.B. | Engineering Index Backfile | 1928


    Telephone toll plant in the Chicago region

    Smith, B. / West, G.B. | Engineering Index Backfile | 1929


    Toll telephone traffic

    Fowle, Frank F. | Engineering Index Backfile | 1914


    Toll-telephone question in Finland

    Talvitie, Y. | Engineering Index Backfile | 1934


    Testing toll and rural telephone lines

    Twigg, G.E. | Engineering Index Backfile | 1930