Madsen, Leif <br/><br/>
Asterisk:  the definitive guide / 
Leif Madsen, Jim Van Meggelen, Russell Bryant 
 - USA:  O'Reilly,  2011 
 - xxxiii, 695 p. :  il. ;  24 cm. 
<br/><br/> Design a complete VoIP or analog PBX with Asterisk, even if you have no previous Asterisk experience and only basic telecommunications knowledge. This bestselling guide makes it easy, with a detailed roadmap to installing, configuring, and integrating this open source software into your existing phone system. 
<br/><br/><label>ISBN: </label>9780596517342 
<br/><br/><label>Subjects--Topical Terms: </label><br/>TELECOMUNICACIONES--SOFTWARE<br/>PROGRAMAS PARA COMPUTADOR--ASTERISK
<br/><br/><label>Dewey Class. No.: </label>004.69  / M183