File:Bell telephone magazine (1922) (14751896341).jpg

Identifier: belltelephonemag00vol2930amerrich (find matches)
Title: Bell telephone magazine
Year: 1922 (1920s)
Authors: American Telephone and Telegraph Company American Telephone and Telegraph Company. Information Dept
Subjects: Telephone
Publisher: (New York, American Telephone and Telegraph Co., etc.)
Contributing Library: Prelinger Library
Digitizing Sponsor: Internet Archive

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rates, holdingimes, distribution of intercommuni-cating, outgoing, incoming, and the•arious types of tie trunk traffic alllave direct bearing on the type,(uantity, and arrangement of equip-nent to be provided. The number>f switchboard positions is deter-nined by the amount of time it takeshe attendants to handle the traffic which in turn is determined by the number and classes of calls to behandled. It may take twice as longto handle certain outgoing centraloffice calls as it does to handle in-ternal calls completed direct to thestation multiple, and still longer tohandle certain classes of toll calls. In most cases, the studies embracea consideration of both manual anddial private branch exchanges, sothat the customer may have thebenefit of expert guidance and expe-rience in the selection of equipmentwhich is best suited to meet his serv-ice requirement. Moor plan layout,lighting, ventilation, operating roomappearance—in fact, most of the fac-tors involved in engineering a new
Text Appearing After Image:
This group of private switchboard attendants is meeting with telephone company Service./(/visas to discuss service matters of mutual interest 42 Bell Telephone Magazine SPRING central office—are taken into consid- passes through Buttermilk Channel eration. Many customers have separate pri-vate branch exchanges in two or morelocations which are interconnected bymeans of tie trunks between them.The advantage of direct connectionbetween distant points of an organ-ization was realized early in the tele-phone industry. When the Brooklyn and across the East River and isabout five miles long. Conversationis carried on with ease . . . Today, one of the largest steelcompanies, with numerous privatebranch exchanges in 29 different citiesin 10 states, is provided with hun-dreds of miles of Bell telephone facil-ities, not only for interconnecting the Bridge was being built, the following private branch exchanges within each item appeared in one of the local city but also for connecting together

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