PMBX ==>
Private Manual Branch eXchange
<communications> (PMBX) The original manual equivalent of a PABX; a PMBX 
involves company employed operators manually switching each call using a manual 
switchboard.
 
(1998-08-07)
 
  
 
  
Nearby terms: 
							Private Automatic Branch eXchange « Private Branch 
							Exchange « private-key cryptography « Private 
							Manual Branch eXchange » privileged instruction 
							» PRL » PRMD
 
							
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