Bellamy, John C. <br/><br/>
Digital telephony / 
John C. Bellamy. 
 - 3rd ed. 
 - New Delhi :  Wiley India,  c2000 [Reprinted 2007]. 
 - xvi, 643 pages :  illustrations ;  23 cm. 
 - Wiley series in telecommunications and signal processing .
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>9788126509294 8126509295 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Digital telephone systems.
<br/><br/><label>Dewey Class. No.: </label>621.385 BEL