FreePBX Commercial Modules are additional commercially licensed modules that add functionality to a base install of the FreePBX Distro. Commercial Modules can be purchased in the Sangoma Portal Store and are only supported on the FreePBX Distro platform. We also recommend using the current LTS (long term support) version of Asterisk with commercial modules. FreePBX with the default Extension mode is the only supported mode. If you have your system setup with Device and User mode, some commercial module features will be non-functional and generally unsupported.