Hersent, Olivier. <br/><br/>
Ip telephony: packet based multimedia communications systems 

 - Singapore :  Addison Wesley Longman,  1994 
 - 456. 
<br/><br/><label>ISBN: </label>8178082586  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Data processing computer science
<br/><br/><label>Dewey Class. No.: </label>004.62  / HER