Bellamy, John C  <br/><br/>
Digital telephony 3rd ed 

 - Wiley India pvt ltd.  New Delhi  2017 
 - xxv,643 
<br/><br/>
<br/><br/><label>ISBN: </label>9788126509294 
<br/><br/><label>Subjects--Topical Terms: </label><br/>ENGINEERING
<br/><br/><label>Subjects--Facted Index Terms: </label><br/>ENGINEERING<br/>Digital telephony