TITLE

Numbers game

AUTHOR(S)
Schley, Stewart
PUB. DATE
February 2011
SOURCE
CED;Feb2011, Vol. 37 Issue 2, p12
SOURCE TYPE
Trade Publication
DOC. TYPE
Article
ABSTRACT
The article focuses on the development of a coding system for telephone calls by AT&T Inc. in the U.S. Engineers at the company substituted manually tended circuit boards with an automated system for connecting calls. Some practicality was also introduced by AT&T into its numbering system by assigning the lowest-digit combinations to areas of high telephone concentration.
ACCESSION #
57758485

 

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