Goralski, Walter <br/><br/>
IP telephony / 
Walter J. Goralski and Matthew C. Kolon 
 - New York :  McGraw-Hill,  2000 
 - xxiii, 468 p. :  ill. ;  23 cm. 
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label>007135221X  RM210.54 
<br/><br/><label>LCCN: </label>99-040270 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Internet telephony