Need some help.

I have one CO that will not ring in (appear or ring) in the system if I change MOH to use External - So I am missing something on the MOH programming sequence.

I want to program MOH to use another source beside CO. EXT as they have their own Message on Hold - Maybe I have something messed up in my thinking process?

What do I need to do? I have the IPK Program Manual V2 so even a reference to that would be helpful.

I haven't done NEC in about 12 years But having worked on this one, I can see myself doing it again.

Bob