Unable to turn off Music on hold

Hi, I have been searching for an answer for 2 days. On one of our inbound routes I have changed the MOH to Default. This started playing music instead of a ringing tone to users calling in. What ever I do I am unable to turn this off. I am getting desperate now I just need incoming callers to hear a ringing tone, not any music. How do I turn this off???

Using FreePBX
Asterisk (Ver. 11.20.0)

I think I have sorted it. The inbound route went to a ring group which also pointed to the Default MOH. I have the ringing back, will now look at best way just to have hold music when calls on hold or transferred.