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

 - 3rd 
 - India  Pearson Education Publisher 
 - Soft Binding  xxv       643 
<br/><br/><br/>English 
<br/><br/><label>ISBN: </label>9814-12-635-7 
<br/><br/><label>Subjects--Topical Terms: </label>--Digital, Telephony
<br/><br/><label>Dewey Class. No.: </label>621.385 BEL-D