Ransome, James F. <br/><br/>
VoIP security / 
James F. Ransome, John W. Rittinghouse 
 - Amsterdam:   Elsevier,   2005 
 - xxvii, 402 p.:   ill.;   24 cm. 
<br/><br/>Includes bibliographical references (p. 379-384) and index 
<br/><br/><label>ISBN: </label>1555583326 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Internet telephony--Security measures