Author | Abrahams, John R |
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Title | Centrex or PBX [electronic resource] : the impact of IP / John R. Abrahams, Mauro Lollo |
Imprint | Boston : Artech House, c2003 |
Connect to | http://www.netLibrary.com/urlapi.asp?action=summary&v=1&bookid=87732 |
Descript | xvi, 161 p. : ill |