Hello. I have a customer with a Mivoice 250 with 6.3 SP1 software. They are reporting that the Dynamic Extension Express feature will automatically turn on their phones. When I went to the site I noticed that the DEE toggle button that was programmed on most of the phones was on even though the user had said that they had turned it off repeatedly. I could not get the problem to reoccur. Has any one else experienced this problem?