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

 - 3a ed. 
 - New York :  John Wiley and Sons,  2000 
 - xxv, 643 p. ;  24 cm. 
<br/><br/><label>ISBN: </label>0471345717 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sistemas telefónicos digitales
<br/><br/><label>LC Class. No.: </label>TK 5103  / 7 B45 2000