Ahson, Syed A. <br/><br/>
VoIP handbook : applications, technologies, reliability, and security /  
edited by Syed A Ahson and Mohammad Ilyas. 
 - /   . 
 - New York :   CRC Press ,   2009. 
 - xiii, 454p. :   ills. ;   25cm .  
<br/><br/>Includes index 
<br/><br/><label>ISBN: </label>9781420070200  GBP69.99 
<br/><br/><label>Subjects--Index Terms: </label>INTERNET TELEPHONY-HANDBOOKS,MANUALS,ETC 
<br/><br/><label>Dewey Class. No.: </label>004.69  / AHS/V