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

 - 3rd 
 - New York  John Wiley  2005 
 - 643p 
<br/><br/><label>ISBN: </label>9814-12-635-7 
<br/><br/><label>Standard No.: </label>90689 
<br/><br/><label>Subjects--Index Terms: </label>Digital telephony Electronics 
<br/><br/><label>Dewey Class. No.: </label>621.385  / BEL