Mahler, Paul. <br/><br/>
VOIP telephony with asterisk / 

 - USA,  Signate,  c2005. 
 - 14, 292 p. ;  ill. ; 
<br/><br/><label>ISBN: </label>0975999200 
<br/><br/><label>Dewey Class. No.: </label>004.678