<communications> (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
Try this search on Wikipedia, OneLook, Google
Nearby terms: CENELEC « centi-call second « central office « Central office exchange service » central processing unit » Centrex » Centronics