1. 
   VTAM
   Virtual Telecommunications Access Method
   Found op http://foldoc.org/VTAM
   
   
2. 
   VTAM
   Virtual Telecommunications Access Method [IBM]
   Found op http://www.encyclo.co.uk/visitor-contributions.php
   
   
3. 
   vtam
   1) Abbreviation for virtual telecommunications access method
   Found op http://www.mijnwoordenboek.nl/EN/crossword-dictionary/vtam/1
   
   

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