Principles of Voice and Data Communications /   Textual Documents 
NULL. 
 - /   . 
 - New Delhi :   Tata McGraw Hill Publishing Company Limited ,   2007. 
 - 217 ;   NULL. 
<br/><br/><label>ISBN: </label>  
<br/><br/><label>Subjects--Index Terms: </label>Telecommunication Networks 
<br/><br/><label>Dewey Class. No.: </label>384.3  / BAT