A customer has an SX-50 and several times a day incoming calls start ringing to rooms 229 0r 231 with console in day service. They never use night service but I checked and it is set to 100 on all trunks in night. All programming looks good, no recent changes. Reseting system fixes problem for a few hours. I really hate to have to default and reprogram this thing but it looks like I am heading that way. Anyone have any other ideas?
MS-55 software. Battery replaced 6 months ago.