Hersent, Olivier. <br/><br/>
IP telephony : deploying VOIP protocols and IMS infrastructure 

 - 2nd  ed. 
 - Chichenster  John wiley and Sons  2011 
 - xxxiii, 439 
<br/><br/><label>ISBN: </label>9780470665848 
<br/><br/><label>Subjects--Topical Terms: </label><br/>IP,telephony,deploying,VOIP,protocols,IMS,infrastructure
<br/><br/><label>Dewey Class. No.: </label>621.385  OLI;1  R