Sounds like the incoming calls are directed to the voicemail group. if you can check in trunk ringing where it's going that will let you know for sure. If it's not the voicemail group (5x9 or 5xx9) then you can go to Station Groups and look to see if the station you want to ring is a member of the group. If it is, remove it, hit save, then add it back and hit save again.

If the the trunk ringing is going to the voicemail group, you have a more complicated change to make.

Have a boo and let us know.

-B