My customer has a TDE100 and is using DT343 telephones. They have a TVA50 voice messaging system. Each extension has their own personal mailbox. They are using auto attendant as a back up to their live receptionist.

Here is my problem. One extension has a message waiting light that will not turn off. I deleted all of the new messages, which should have triggered the light to go off, but it didn't. I deleted all of the old messages, leaving the mailbox empty, but still the light stays on. I deleted the voice mailbox entirely, and the message waiting light stays on. I looked to see if there was a station to station message, but there was not. I looked to see if the general delivery mailbox was somehow pointing to this extension, and it was not. I went in to the program and disabled the message waiting light and it still stays on. I changed telephones and the light stays on.

Can someone help? I have no idea where else to look.