Wallace, Kevin. , <br/><br/>
Authorized self-study guide : Cisco Voice over IP (CVOICE) / 
Kevin Wallace. 
 - 3rd ed. 
 - xxi, 576 pages :  illustrations ;  24 cm.+  1 computer optical disc ( 4 3/4 in.). 
<br/><br/><label>ISBN: </label>9781587055546 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Internet telephony --Examinations --Study guides.<br/>Electronic data processing personnel --Certification --Study guides.
<br/><br/><label>LC Class. No.: </label>TK5105.8865   / .W354 2009