1. 
   PABX
   Private Automatic Branch Exchange
   Found op http://www.encyclo.co.uk/visitor-contributions.php
   
   
2. 
   PABX
   Private Automatic Branch Exchange- typically the private exchange associated with a business. Also called a PBX Private Branch Exchange.
   Found op http://www.encyclo.co.uk/visitor-contributions.php
   
   
3. 
   PABX
   Private Analogue Branch Exchange. Older switches used an analogue form of operation, however these have (mostly) been superseded by digital types, known as PBX (private Branch Exchange) or PDBX (Private Digital Branch Exchange).
   Found op http://www.encyclo.co.uk/visitor-contributions.php
   
   
4. 
   PABX
   Private Automatic Branch eXchange
   Found op http://foldoc.org/PABX
   
   
5. 
   PABX
   Private Automatic Branch Exchange
   Found op http://www.met.police.uk/foi/glossary.htm
   
   
6. 
   pabx
   1) Abbreviation for private automatic branch exchange
   Found op http://www.mijnwoordenboek.nl/EN/crossword-dictionary/pabx/1
   
   

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