Donohue, Denise, <br/><br/>
Cisco voice gateways and gatekeepers /  
by Denise Donohue, David Mallory, Ken Salhoff. 
 - xxix, 619 pages ;  24 cm. 
<br/><br/> Includes appendix and index. 
<br/><br/><label>ISBN: </label>158705258X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computers
<br/><br/><label>Index Terms--Genre/Form: </label><br/>Internet.<br/>Telephone.<br/>Computer networks.<br/>Examinations.
<br/><br/><label>Dewey Class. No.: </label>004.695076  / D687