File:Bell telephone magazine (1922) (14756708125).jpg

Identifier: belltelephonemag19amerrich (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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cessary to hear them at a distance. Lights, too, may be used as signals,although in the home they are gener-ally used only as supplements to bells.Where there are two lines, for ex-ample, a common bell can serve toannounce a call on either one anddifferently colored lights at the tele-phone show which line the call is on.Two bells of different tones would, ofcourse, accomplish the same purpose.Like the bells, the lamps are designedto fit various needs. There may be times when the soundof a bell is not desired. Particularlyis this true of a bedroom extension when there is sickness or when the bellwould interrupt needed sleep. A rem-edy for this is a simple little switchwhich cuts off the extension bell—^butnot the telephone—until it is thrownon again. Another switch, equallysimple, will disconnect all extensiontelephones at will, thus insuring abso-lute privacy of the conversation overthe telephone in use. Again, a callmay be answered at one telephoneand another person summoned, by
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Efficiency in the Kitchen The hang-up handset makes it possible to keep an eye on the cooking while holding a conversation 254 Bell Telephone Quarterly OCTOBER means of buzzer signals, to answer itat another telephone. When two or more central-officelines enter the home, all lines may beused for both outgoing and incomingcalls, of course—although in somehouseholds it is the practice to limitservice calls to one line, so that theother line or lines may be always freefor use by members of the family.Since an establishment large enoughto require several lines will have ex-tension telephones in all importantrooms, both family and service, it be-comes increasingly convenient—im-portant, in fact—to be able to usethem for intercommunication through-out the house and other buildings.Likewise, the service must have flexi-bility: it must be so arranged thatincoming calls may be answeredeither at any telephone or at certaindesignated telephones; that a callmay be transferred readily from o

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