Bates, Bud Regis J <br/><br/>
Voice and data communication hand book 

 - 3 
 - New Delhi  Tata McGraw-Hill  2000 
 - xxiv, 998p.   
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label>70402000 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computer telephony integration<br/>Radio and Video systems<br/>Voice communication--Telephone network