Is my FXO card installed correctly

I setup my FreePBX box years ago and can’t remember 100% how I put it together.

It was installed with and FXO card which (if I remember correctly, worked). Since then however I have been using SIP connections with a naked DSL service.

For one reason and another I have now subscribed to the standard analogue service but I can’t work out how to get FreePBX to pickup the calls.

What I am needing is

  1. How can I see if my card is being detected of the system. What diagnostics can I do?
  2. What steps do I need to follow to receive calls on the analogue service. I am not wanting to dial out on it so no outbound routes are necessary.