Sisalem, Dorgham <br/><br/>
Sip security 

 - Chichester  John Wiley and Sons  2009 
 - xv,336p.  25cm. 
<br/><br/><label>ISBN: </label>9780470516362 
<br/><br/><label>Subjects--Uniform Titles: </label><br/>Computer networks-Security measures<br/>Computer network protocols
<br/><br/><label>Dewey Class. No.: </label>005.8  / S48S