Park, Patrick,  1971- <br/><br/>
Voice over IP security / 
 VoIP security 
Patrick Park. 
 - Indianapolis, Ind. :  Cisco Press,  c2009. 
 - xix, 361 p. :  ill. ;  23 cm. 
 - Cisco Press networking technology series.  IP communications .
<br/><br/> Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>1587054698 (pbk.) 9781587054693 (pbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Internet telephony--Security measures.