What is the Extension Settings Module used for?
The Extension Settings Module is actually a reports module. It will show you each extension on your system and whether that extension has Call Waiting, Do Not Disturb, Call Forwarding, VMX Locator, Follow-Me, and other features enabled or disabled.
This module may eventually be moved to the "Reports" tab and be renamed "Extension Settings Report."
How Do I Get to the Extension Settings Module?
To access the Extension Settings Module in FreePBX 2.10 and later, access the graphical user interface using a web browser. Click on the "Settings" pull down menu at the top and then select "Extension Settings".