Bellamy, John C. Prokis, John G ed. <br/><br/>
Digital telephony 

 - 3rd ed. 
 - New Delhi  Wiley India  2000 
 - xxv+643 
<br/><br/> Content page available 
<br/><br/><label>ISBN: </label>9788126509294 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Digital,telephony, multiplexing, voice digitization
<br/><br/><label>Dewey Class. No.: </label>621.385  BEL;9