Definition of centrex in English:


Syllabification: cen·trex
Pronunciation: /ˈsentreks
(also trademark Centrex)


A telephone service in which a group of phone lines can be joined by part of the local exchange acting as a private exchange.
More example sentences
  • Service may be provided by commercial analog lines or via centrex (central Office exchange service, provided by a switch managed at the provider's central Office).
  • Hosted IP Centrex is designed for customers that want all the features of a PBX or Key system without the associated capital, lease, or maintenance costs.
  • IP Centrex and Hosted PBX services provide a valuable potential source of new revenue for service providers.


late 20th century: blend of central and exchange.

Definition of centrex in:

Get more from Oxford Dictionaries

Subscribe to remove ads and access premium resources

Word of the day deictic
Pronunciation: ˈdīktik
denoting a word whose meaning depends on context...