CentOS ISO

There is a new CentOS ISO planned soon. However, in the meantime if you want to test FusionPBX simply you may want to try using the old one. The old one is from April/May 2010 and therefore the FusionPBX in it is old and the Freeswitch is old. That said, they do work.

You can obtain the old ISO from FusionPBX for ex-Trixbox users blog

If you follow the instructions at that blog it will also show you how to fix the permission issues in the ISO, upgrade fusionpbx to the latest version and also upgrade FreeSWITCH to the latest version. For many people, following these steps will be far less daunting than the prospect of installing a new Centos linux and installing FreeSWITCH and Fusionpbx on it from scratch.

Alternatively, if you don't really need Centos, have you thought of using the Ubuntu easy installer instead?