Hi, We're having a persistent problem with the message indicator light not going out on one of our NEC DT700 phones. The system is SV8300 PCPro - UNIVERGE UM8000. I have removed the profile for the ext in the UM8000 admin portal to disable voicemail, but the red light indicator remains. Also did a factory reset on the phone; reprogrammed the ext, and the light remains on. Any suggestion(s) on getting the light to go out, would be much appreciated. Thank you!