Meggelen,Jim Van <br/><br/>
Asterisk the definitive guide:  open source telephony for the enterprise 

 - Mumbai:  Shroff Publishers & Distributors pvt.ltd,  2019 
 - xx,391 p. 
<br/><br/><label>ISBN: </label>9789352138616 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Asterisk <br/>Telecommunication systems<br/>Voice over IP
<br/><br/><label>Dewey Class. No.: </label>004.67 MEG