PABX ⇝
Private Automatic Branch eXchange
(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.
Last updated: 1998-08-07
Nearby terms:
private ♦ Private Automatic Branch eXchange ♦ Private Branch Exchange
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