Hersent, Olivier Gurle, David & Petit, Jean Fierre  <br/><br/>
IP telephony: paket based multimedia communication system  

 - Addison Wesley   New York   2001 
 -  0 
<br/><br/><label>ISBN: </label>81-7808-258-6  
<br/><br/><label>Subjects--Topical Terms: </label><br/>TELEPHONY 
<br/><br/><label>Dewey Class. No.: </label>621.385 7 HER