Olivier Hersent <br/><br/>
IP Telephony 

 - New York  Addison- Wesley Publishing Company  2000 
 - 451 p 
<br/><br/><label>ISBN: </label>0-201-61910-5 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Communications
<br/><br/><label>LC Class. No.: </label>TK 5105.8865 .H47/