Dang, Luan Gennings, Cullen etal  <br/><br/>
Practicle VOIP : Using VOCAL  

 - SPD pvt. Ltd.   Mumbai   2002 
 -  450 
<br/><br/><label>ISBN: </label>81-7366-439-0  
<br/><br/><label>Subjects--Topical Terms: </label><br/>COMPUTER NETWORK 
<br/><br/><label>Dewey Class. No.: </label>004.62 DAN