File:Bell telephone magazine (1922) (14756494825).jpg

From Wikimedia Commons, the free media repository
Jump to navigation Jump to search

Original file(2,070 × 1,526 pixels, file size: 859 KB, MIME type: image/jpeg)

Captions

Captions

Add a one-line explanation of what this file represents

Summary[edit]

Description
English:

Identifier: bellvol24telephonemag00amerrich (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: BayNet

View Book Page: Book Viewer
About This Book: Catalog Entry
View All Images: All Images From Book
Click here to view book online to see this illustration in context in a browseable online version of this book.

Text Appearing Before Image:
ice itself. Perhaps the dial operators posi-tions can handle a little more traffic.In that case, lines can be connectedfor manual originating serxice, whilecalls to those subscribers will be com-pleted through the dial equipment. Most offices are short on terminalnumbers. How can every numberwork all the time? .\ssign a new cus-tomer to an\ disconnected number as 304 Bell Telephone Magazine WINTER soon as it is released. The new sub- Means have been devised for mak- scriber will get some calls intended ing a single dial number terminal do for the old one. But thats muchbetter than no service at all. At the same time, the terminalsused for testing purposes are being cutto the barest minimum, and the sameis done with the numbers used forcompany business. double duty, serving to reach twocustomers on the same party line. As new equipment is produced, theuse of every frame and switch isplanned with the utmost care. Wayshave been found to drop out 15 per-cent of the equipment in new cross-
Text Appearing After Image:
Through an ingenious re-arrangement, this bank ot step-by-step dial central officeswitches is temporarily serving twice as many subscribers as it was designed to take care ot Has a block of numbers been as-signed for coin box growth? Cut itto the minimum and use the numbersthus released for regular service.Likewise, go ahead and use numbersthat have been saved for growth inbusiness P.B.X. groups. bar offices temporarily by cutting cor-ners and eliminating every frame notimmediately essential to service. Theprovision of equipment for growth inservice after cutover has been reducedto the bare minimum needed to carryon until the next addition can be 1945-^4^ ^^^^^ ^^^^ 6>j/^wj First Order oj Business 305 rushed in. A few frames here, a fewswitches there, may not sound large;but if you can defer them and stillgive service in a hundred jobs, itmeans that perhaps ten new jobs,otherwise impossible, can be squeezedin. Typical ground rules for the engi-neer are: Since party service cau yet

Note About Images

Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.
Date
Source

https://www.flickr.com/photos/internetarchivebookimages/14756494825/

Author Internet Archive Book Images
Permission
(Reusing this file)
At the time of upload, the image license was automatically confirmed using the Flickr API. For more information see Flickr API detail.
Flickr tags
InfoField
Flickr posted date
InfoField
27 July 2014

Licensing[edit]

This image was taken from Flickr's The Commons. The uploading organization may have various reasons for determining that no known copyright restrictions exist, such as:
  1. The copyright is in the public domain because it has expired;
  2. The copyright was injected into the public domain for other reasons, such as failure to adhere to required formalities or conditions;
  3. The institution owns the copyright but is not interested in exercising control; or
  4. The institution has legal rights sufficient to authorize others to use the work without restrictions.

More information can be found at https://flickr.com/commons/usage/.


Please add additional copyright tags to this image if more specific information about copyright status can be determined. See Commons:Licensing for more information.
This work is in the public domain in the United States because it was published in the United States between 1929 and 1977, inclusive, without a copyright notice. For further explanation, see Commons:Hirtle chart as well as a detailed definition of "publication" for public art. Note that it may still be copyrighted in jurisdictions that do not apply the rule of the shorter term for US works (depending on the date of the author's death), such as Canada (50 p.m.a.), Mainland China (50 p.m.a., not Hong Kong or Macao), Germany (70 p.m.a.), Mexico (100 p.m.a.), Switzerland (70 p.m.a.), and other countries with individual treaties.

العربية  беларуская (тарашкевіца)  čeština  Deutsch  Ελληνικά  English  español  français  Bahasa Indonesia  italiano  日本語  한국어  македонски  Nederlands  português  русский  sicilianu  slovenščina  ไทย  Tiếng Việt  中文(简体)  中文(繁體)  +/−

Flag of the United States
Flag of the United States
This image was originally posted to Flickr by Internet Archive Book Images at https://flickr.com/photos/126377022@N07/14756494825. It was reviewed on 17 September 2015 by FlickreviewR and was confirmed to be licensed under the terms of the No known copyright restrictions.

17 September 2015

File history

Click on a date/time to view the file as it appeared at that time.

Date/TimeThumbnailDimensionsUserComment
current22:52, 17 September 2015Thumbnail for version as of 22:52, 17 September 20152,070 × 1,526 (859 KB) (talk | contribs)== {{int:filedesc}} == {{subst:chc}} {{information |description={{en|1=<br> '''Identifier''': bellvol24telephonemag00amerrich ([https://commons.wikimedia.org/w/index.php?title=Special%3ASearch&profile=default&fulltext=Search&search=insource%3A%2Fbellvo...

There are no pages that use this file.