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

 - 3 
 -   John Wiley & Sons Inc., New York  2002 
 - 635 
<br/><br/><label>ISBN: </label>3093 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Wire telephony; Electronics and communication engineering; Applied physics
<br/><br/><label>Dewey Class. No.: </label>621.385  BEL-D3