Ohrtman, Franklin D. <br/><br/>
Softswitch :  architecture for VoIP / 
Franklin D. Ohrtman 
 - New York :  McGraw-Hill Irwin,  c2003. 
 - xvi, 359 p. ;  ill. ;  24 cm. 
 - McGraw-Hill networking professional .
<br/><br/><label>ISBN: </label>0071409777 
<br/><br/><label>LCCN: </label>
<br/><br/><label>Subjects--Topical Terms: </label><br/>Internet telephony<br/>Switching theory
<br/><br/><label>LC Class. No.: </label>TK5105.8865  / .O37 2003 
<br/><br/><label>Dewey Class. No.: </label>621.38212  / O36s