Definition of centrex in English:

centrex

Line breaks: cen|trex
Pronunciation: /ˈsɛntrɛks
 
/

noun

[mass noun]
  • 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.

Origin

1990s: blend of central and exchange.

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