VoIP handbook  applications, technologies, reliability, and security /  [electronic resource] : 
edited by Syed A. Ahson, Mohammad Ilyas 
 - Boca Raton :  CRC Press,  c2009 
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<br/><br/>Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>9781420070200 1420070207 
<br/><br/><label>LCCN: </label>2008-049366 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Internet telephony--Handbooks, manuals, etc.
<br/><br/><label>Dewey Class. No.: </label>004.69/5