LUAN <br/><br/>
PRACTICAL VOIP USING VOCAL 

 - BEIJING  O'REILLY  2002 
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<br/><br/><label>ISBN: </label>0-596-00078-2 
<br/><br/><label>Source: </label> 2008-277 
<br/><br/><label>Subjects--Personal Names: </label><br/>CULLEN JENNINGS  DAVID KELLY
<br/><br/><label>Subjects--Topical Terms: </label><br/>TECHNOLOGY(APPLIED SCIENCES)
<br/><br/><label>LC Class. No.: </label>TK 5105.8865.D35