Search Result for "pbx":

V.E.R.A. -- Virtual Entity of Relevant Acronyms (February 2016):

PBX Private Branch eXchange
The Free On-line Dictionary of Computing (30 December 2018):

Private Branch Exchange PBX (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). (1997-06-25)