Carpenter, Tom. <br/><br/>
CCNA cisco certified network associate voice study guide (exams 640+460 and 642-436) /  
by Tom Carpenter. 
 - /   . 
 - NULL :   Tata McGraw Hill Education ,   2011. 
 - xxviii,579p. :   ills.,figs ;   23cm  1 CD .  
<br/><br/>Includes index and glossary 
<br/><br/><label>ISBN: </label>9780071074421  RS550.00 
<br/><br/><label>Subjects--Index Terms: </label>INTERNET TELEPHONY-EXAMINATIONS-STUDY GUIDES 
<br/><br/><label>Dewey Class. No.: </label>004.62  / CAR/C