Private Automatic Branch eXchange


Also found in: Acronyms.

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.

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.
References in periodicals archive ?
At present, SibChallenge-Telecom services 17, 000 wireline users, 8, 000 Code Division Multiple Access (CDMA) fixed wireless users, over 12, 000 Internet users, 20, 000 Private Automatic Branch Exchange (PABX) numbers and 40,000 numbers for a mobile operator.
MTN Business Kenya has introduced its Internet Protocol (IP) Private Automatic Branch Exchange (PABX) in Kisumu.
Under the terms of the agreement, Lucent now has pre-approved contract pricing for the purchase of Private Automatic Branch Exchange (PABX) equipment and related equipment for state, county and local Florida agencies.