FreePBX Version 14.0 Supports Asterisk 11 as minimum.
If you want to use FreePBX commercial modules, you must install FreePBX on SNG7, using the FreePBX Distro ISO. FreePBX itself is open source, and can be installed on any modern Unix-based distribution that supports PHP 5.6 or higher.
Supported/Tested *nix Distributions
|Distribution||Date Last Tested||Certified||Tested||Commercial Module Support||Notes|
|CentOS 7||No||Yes||No||No commercial module support|
|No||No||100% Open Source installation|
|Ubuntu 18.04||No||No||100% Open Source installation|
To reduce download and install time, please be aware that of these instructions give you a minimal install. This is enough to provide for basic PABX functionality, but you should go to Module Admin, and select 'Check Online' to download the additional modules after installation. There are approximately 50 additional modules that can be installed.