User Mailbox Full - can't reset it
We just had two new lines punched down for extensions. One of them says mailbox full. I've reset the mailbox, deleted the mailbox, reset the phone system, added the mailbox back in. It seems to be the trick for about an hour and then it goes back to saying mailbox full and you can't leave a message. Can anyone help??
Lands Phones - Inter-Tel - Axxess Corded Phone