Ok but your a paying customer of EPM. That doesn’t entitle you to other paid features for free. If you want all the features I suggest maybe looking at something like PBXact that bundles that all in for a very reasonable cost and peace of mind of a commercially supported product.
For FreePBX we offer alacart modules to enhance your free system. We do after all have to fund the millions a year we invest into FreePBX for the benefit of the community.