Hersent, Olivier. , <br/><br/>
IP telephony :  packet-based multimedia communications systems / 
Oliver Hersent, David Gurle, Jean-Pierre Petit. 
<br/><br/><label>ISBN: </label>0201619105(hc) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Internet telephony.<br/>TCP/IP (Computer network protocol).
<br/><br/><label>LC Class. No.: </label>TK5105.8865   / .H47 2000