Wright, David J. <br/><br/>
Voice over packet networks / 
David J. Wright. 
 - Chichester [etc] :  John Wiley & Sons LTD,  2001. 
 - xii, 252 p.  ill. 
 - Willey series on communications technology .
<br/><br/>Bibliogr.: p.239-243 
<br/><br/><label>ISBN: </label>0471-49516-6 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Packet networks