Bellamy, John C <br/><br/>
Digital telephony 

 - 3rd ed 
 - John Wiley & Sons, New York  2000 
 - xxv,643 
<br/><br/><label>ISBN: </label>0-471-34571-7 
<br/><br/><label>Subjects--Facted Index Terms: </label><br/>ENGINEERING
<br/><br/><label>Dewey Class. No.: </label>621.385 Bel