Centrex ⇝
Central office exchange service
(Centrex) A PBX service providing switching at the central office instead of at the company premises. Typically, the telephone company owns and manages all the communications equipment necessary to implement the PBX and then sells various services to the company.
Last updated: 1999-10-27
Nearby terms:
central office ♦ Central office exchange service ♦ central processing unit
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