Bell telephone magazine (1922) (14755876652)

Identifier: belltvol20elephonemag00amerrich (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

Text Appearing Before Image:

e is provided for ten different fre-quencies, and voice-operated relaysare included which eliminate the needfor a press-to-talk switch. Figure 6shows the ship telephone used as apart of this set. Iwo classes of coastal and harborradio telephone service are offeredthrough the Bell System shore sta-•tions: general service and dispatchingservice. General service covers random callsbetween any land telephone and anysuitably equipped vessel or betweentwo vessels. The rate for the radio Fig. 3. The radio telephone receiving station at Tampa, Fla., for coastal and harbor service link includes a connection with anytelephone within the designated localservice area of the radio terminal of-fice, and in some cases within a cer-tain zone along the shore. Wherepoints on land outside this area areinvolved, an additional charge for theland portion of the call is added tothe radio-link charge. Dispatching service is intended forcommunication between vessels of onecustomer and one or more designated

Text Appearing After Image:

Ik;. I. Ihis .ships rddio telephone set, made by the Western Electric Company, provides conversation channels on four frequencies

bell telephone magazine 1941 book illustrations history of technology electric power telephone bell telephone company american telephone and telegraph company images from internet archive

1941

Prelinger Library

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public domain