Centrex Hear it!

Centrex definition

Cen·trex (sen′treks′)

noun

a telephone system for businesses, large organizations, etc. in which outside calls can be made directly to, or from, any extension

Etymology: centr(al) + ex(change)

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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