Durkin, James F. <br/><br/>
Voice Enabling the  Data  Network:  H.323, MGCP, SIP, QOS, SLAS,  and   Security 

 - Indianapolis  Cisco Press  2003 
 - xv, 200p.  
<br/><br/><label>ISBN: </label>1587050145 
<br/><br/><label>Source: </label> 2008-378 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Internet telephony.
<br/><br/><label>LC Class. No.: </label>TK5105.8865   / .D87 2003