Private Branch Exchange

<communications> (PBX) A telephone exchange local to a particular organisation who use, rather than provide, telephone services. The earliest PBXs were manual (Private Manual Branch EXchange, PMBX) but are now more likely to be automatic (Private Automatic Branch eXchange).

Last updated: 1997-06-25

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Nearby terms:

Privacy Enhanced Mail « private « Private Automatic Branch eXchange « Private Branch Exchange » private key » private-key cryptography » Private Manual Branch eXchange

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