Davidson, Jonathan <br/><br/>
Voice over IP fundamentals / 
Jonathan Davidson, James Peters, with contributions by Brian Gracely. 
 - 2nd ed. 
 - xx, 394 p. :  ill. ;  24 cm. 
 - Cisco Press fundamentals series .
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>1578701686 
<br/><br/><label>LCCN: </label>99061716 
<br/><br/><label>Subjects--Topical Terms: </label><br/>İnternet telefon sistemi<br/>Internet telephony
<br/><br/><label>LC Class. No.: </label>TK5105.8865  / .D38 2007