Walters, Stephen M. , <br/><br/>
The new telephony / 
Stephen M. Walters. 
 - xx, 371 pages :  illustrations ;  25 cm. 
<br/><br/><label>ISBN: </label>0130358142 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Internet telephony.<br/>Telephone systems.<br/>Convergence (Telecommunication).
<br/><br/><label>LC Class. No.: </label>TK5105.8865   / .W34 2002