File:Bell telephone magazine (1922) (14753702444).jpg

Identifier: bellvol25telephonemag00amerrich (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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her new but similar method ofvoice transmission which Is expectedto become increasingly Important inrural areas is telephone-line carrier.Toll circuits have for some time em-ployed carrier systems to increase thenumber of long distance conversa-tions which can be carried on polelines. Today, carrier equipmentsimilar to that developed for powerlines is being used on rural telephone %M*.^lines serving Norton Mills, Vermont,on the Canadian border, where an ex-perimental project is being conductedby engineers of the New EnglandTelephone and Telegraph Companyand the Bell Laboratories. Another method of bringing tele-phone service to more rural families It was not extensively used in ruralareas. New techniques and facilitieshave been developed since the warand have proved satisfactory in fieldtests. Power and telephone organi-zations are arranging for their wid-est possible application. One of the most Important fea-tures in the development of joint useis the high-strength steel wire prevl-
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is the joint use of long-span power- ^, , ////,./ ,. •, , , • J 1 1 Ineyi a long-spaii pole iiiie IS built to bring hne poles by electric and telephone the high-strength steel wires into the neigh- companies. Joint use, as the in- borhood 200 Bell Telephone Magazine WINTER ously mentioned, for it possesses suf-ficient strength to be used over thelong spans commonly used on ruralpower lines. Some potential telephone custom-ers live out of reach of both existingelectric power and telephone lines.This is particularly true in westernUnited States, where there are vaststretches of ranch country. To reachthese remote spots. Bell Laboratoriesengineers have been experimentingwith radio telephony for rural tele-phones. Last August, engineers ofthe Mountain States Telephone andTelegraph Company and the Labora-tories made trial installations ofradio telephone equipment and otherfacilities at Cheyenne Wells, Colo-rado, which enable eight ranch fami-lies to be connected with any othertelephone

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