Collins, Daniel <br/><br/>
Carrier Grade Voice Over IP  

 - Boston :   McGraw-Hill,   c2003 
 - XVIII, 522 p.  : ill 
<br/><br/>Includes Bibliographical References and Index 
<br/><br/><label>ISBN: </label>0071231552 
<br/><br/><label>ISSN: </label>
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computer Networks<br/>Telecommunications
<br/><br/><label>Dewey Class. No.: </label>621.38212  / COL