PBX Platforms - Module UserGuides
You can view information on all the modules of your PBXact system under PBX GUI - Standard Modules and PBX GUI - Commercial Modules sections of the wiki.. All FreePBX Standard Modules are included in your PBXact system, and most "Commercial Modules" are included by default on your system as outlined in the PBX Platforms - PBXact Features wiki page.