Swale, Richard <br/><br/>
Carrier-Grade Volip / 
Richard Swale, Daniel Collins 
 - 3rd ed. 
 - New Delhi :  McGraw-Hill Education (India) Private Limited,  c2014 
 - xv, 494 p. :  ill.  ;  24 cm. 
<br/><br/>Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>9789351344742 (pbk.)  Rs.595.00 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Internet telephony<br/>Voice over Internet Protocol
<br/><br/><label>Dewey Class. No.: </label>004.69