Internet telephony 

 - London:    The MIT Press,  
 - xii, 395p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computer science
<br/><br/><label>Subjects--Index Terms: </label>Information technology 
<br/><br/><label>Universal Decimal Class. No.: </label>D 681.324:621.395  / P1