Private Automatic Branch eXchange


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private automatic branch exchange

[′prī·vət ¦ȯd·ə‚mad·ik ′branch iks‚chānj]
(communications)
A private branch exchange in which connections are made by remote-controlled switches. Abbreviated PABX.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

Private Automatic Branch eXchange

(communications)
(PABX) A telephone exchange operated within an organisation, used for switching calls between internal lines and between internal and PSTN lines. In contrast to a PMBX, a PABX can route calls without manual intervention, based entirely on the number dialed. Not all PABXs can route external calls to internal numbers automatically however.
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References in periodicals archive ?
That system proved of sufficient worth for it now to have been upgraded to the latest MkIII version, Racal has also been supplying PABXs (private automatic branch exchanges) to the Angolan authorities for some time.