IP telephony interconnection reference  challenges, models and engineering 
Mohamed Boucadair...[et al.] 
 - Boca Raton  Taylor & Francis  2012 
 - xxiv, 366 p.  ill.  24 cm 
<br/><br/> Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>9781439851784 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Internet telephony
<br/><br/><label>Dewey Class. No.: </label>621.385 INT