Navigate to FreePBX and enter your credentials.
Select the "Applications" tab, then click on "IVR" from the drop-down menu.
Press the "+ Add IVR" button to begin the configuration.
Enter IVR General Options:
Enter IVR DTMF Options:
Note: To add an announcement go to Admin > System Recordings
Enter IVR Entries:
Click on "Submit" when you are finished adding an IVR.
After that, select "Apply Config" to reload FreePBX and finalize your changes.