File:Bell telephone magazine (1922) (14775853903).jpg

Identifier: belltelephonemag4344amerrich (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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m, a digital computer hasbeen programmed to accept the cardsfrom the telemetry system and to derivestatistical information from them such as: • The mean and standard deviation ofthe number of off-hooks a day. • The mean and standard deviation ofthe number of uses of the various serv-ice features (self-view, one-way ortwo-way video, etc.). • The mean and standard deviation ofconversation time, ringing time, andsignaling time. • The mean and standard deviation ofthe per cent of off-hook time in whichthe Speakerphone is used. The telemetry data will be analyzedweekly until the statistics become stabil-ized. It should then be possible to drawsome conclusions as to how the users ofthe system have reacted to it. Various Getting Users Reactions A sample of the Worlds Fair visitorswho use the picturephone system therewill be asked for their initial reactions tothe system. Because a large number ofpeople will have an opportunity to use thissystem, differing attitudes after one expe- 20
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rience may be studied exhaustively. View-ing conditions may be changed to obtainan even wider range of first-use reactions. Reactions to any communications sys-tem, however, will change markedly aftera long period of daily use. This, of course,is a fact that motivated the Murray Hill-Holmdel system. Between informationgathered on both experimental systems,it will be possible to assess the responseof several samples of users. Thus, the datafrom both systems should complementeach other effectively. At this point it is still too early to pre-dict when we will be able to offer picture-phone service to all our customers. CharlesM. Mapes, assistant chief engineer ofA.T.&T., explained to the press at the time of the first transcontinental picture-PHONK call that, . . . Much further devel-opment work remains to be done beforeit will be possible to offer picturephoneservice to the general public for residence and ordinary business use On the other hand ... a large company might find sit-ua

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