File:Bell telephone magazine (1922) (14569908178).jpg

Identifier: belltelephonemag22amerrich (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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tworksserve many purposes. One, for in-stance, transmits to a printer 500listing changes daily for the addendato the Information records ofN.W.A. (National War Agencies),whose telepiione directory, in pass-ing, contains alphabetical and classi- 1943 How Washingtons Telephones Went to War 59 fied sections and, with 20,000 listings,compares in bulk and pages with thetelephone book for a city the size ofWheeling, West Virginia. Naturally, it has taken organiza-tion and ingenuity to keep abreast ofthis growth in teletypewriter services,nor has it been easy going. Instru-mentalities have been scarce. Per-sonnel had to be found and trained.In the commercial department a half- formal procedures for training cus-tomers teletype attendants have ma-tured into a full-fledged school thatin II months has instructed morethan 600 pupils in the art. Nor isthe end in sight. Private Branch Exchanges Here in the Capital and its sub-urbs can be found the largest privatebranch exchange switchboards in the
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Installing the worlds largest private branch switchboard in the War De-partment. Installers worked around the clock to speed It to completion dozen men under a full-time man-ager work round the clock to answerthe hundred questions that must besettled for each new service, each ad-dition or rearrangement. In plant,the installation and maintenance crewhas grown from seven men to morethan 40; and the traffic force at theswitchboard, supplied and supervisedby the telephone company, has builtup from seven to more than 100. In- world. Competition of late has beenkeen. The half-century ending In1939 saw the Companies Invest-ment in manual multiple and largedial PBxs rise gradually to $3,046,-000—and only three years more sawIt pass $10,800,000. The net growth of 49 systems In ^ Including associated equipment, frames, andpower plant, and excluding building and centraloffice cable. 6o Bell Telephone Magazine FEBRUARY these three years, of 711 positionsand 72,400 station lines, is simple tota

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