Switching to VoIP: A Solutions Manual for Network Professionals reviewed by Robert 
Pritchett 
Author: Ted Wallingford 
http://www.oreillynet.com/cs/catalog/view/au/1959
http://www.macvoip.com
  
O'Reilly 
http://www.oreilly.com
Booksite: 
http://www.oreilly.com/catalog/switchingvoip/index.html
  
Released: June 2005 
$40 USD, $56 CND,  28.50 GBP,   35 Euro 
Pages: 477 
ISBN: 0596008686 
Requirements: Linux, Mac OS X or MS Windows and a desire 
to use Asterisk. 
Strengths: Cross platform approach to Asterisk. 
Weaknesses: None found.  
Switching to VoIP: A Solutions Manual for Network Professionals by Theodore Wallingford 
takes us soup to nuts with migrating from regular phone systems to Voice over IP or in using 
Internet Telephony.  
My experience as a Computer Telephony Engineer tracks nicely with what Ted Wallingford has 
put together here, but he takes it further by showing how to use Asterisk, an Open Source 
telephony server that runs on either Linux, FreeBSD or Mac OS X systems as a soft PBX 
(Private Branch Exchange).  This isn't so much a What book, but rather, a How book. And a lot 
of it revolves around Ted's findings regarding Open Source VoIP apps and uses Asterisk 
(created by Mark Spenser) as the foundation. A commercial version of Asterisk can be obtained 
from Digium at 
http://www.digium.com/
 with Open Source support at 
http://www.asterisk.org/
and documentation located at 
http://www.asteriskdocs.org/
. More can be discovered here: 
http://www.onlamp.com/pub/a/onlamp/2003/07/03/asterisk.html
. 
   
What held special interest for me was that apparently there is a version of Asterisk available for 
Mac OS X by way of 
http://www.macvoip.com/
, but found it here: 
http://www.versiontracker.com/php/search.php?mode=basic&action=search&str=Asterisk&plt%
5B%5D=macosx&x=0&y=0
  with support here 
http://www.voip info.org/tiki 
index.php?page=Asterisk%20MacOSX%20Support
 and here 
http://www.astmasters.net/
.  
  MPN, LLC 2005 macCompanion 
Page 50 
August 2005, Volume 3 Issue 8 




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