Willum stallings <br/><br/>
ISDN and Broadband ISDN with frame Relay and ATM 

 -  Pearson Education  2009 
 - 552p 
<br/><br/><label>ISBN: </label>9788131705636 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Technology, Engineering
<br/><br/><label>Dewey Class. No.: </label>621.382   / STA-I