John C. Bellamy <br/><br/>
Digital Telephony 

 - 3rd 
 - Newdelhi  Wiley India  2014 
 - 643 
<br/><br/><label>ISBN: </label>9788126509294 
<br/><br/><label>Subjects--Topical Terms: </label><br/>ELECTRONICS
<br/><br/><label>Dewey Class. No.: </label>621.385  / BEL/D