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

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