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Meaning of PRIVATE AUTOMATIC BRANCH EXCHANGE

 
Computing Dictionary
 
 Definition: 

(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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