Ganguly, Samrat. <br/><br/>
VoIP :  wireless, P2P and New Enterprise Voice Over IP / 
Samrat Ganguly, Sudeept Bhatnagar. 
 - Chichester, England ;  Hoboken, NJ :  Wiley,  c2008. 
 - xviii, 258 p. :  ill. ;  26 cm. 
<br/><br/> Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>0470319569 (cloth) 9780470319567 (cloth) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Internet telephony.