MICS4.1

VMAIL ringing service is set to "Auto", all other services set to "Off". I changed the control set for all lines/sets from DN 228 to DN 229. DN 229 now displays the "Services ON" message when VMAIL is active.

The strange thing is that DN 228 momentarily beeps "Access Denied" the moment VMAIL ringing begins. What's also interesting is that when you exit out of a programming session on DN 228, about 3 seconds later you get the same "Access Denied" on the display for a moment. This only happens while VMAIL ringing is engaged...during normal hours no such message appears.

I have checked & double-checked to be sure that DN 228 is not assigned as a control set anywhere - where else can I look?

Thanks for any input.