Well your customer is in a bad way so what I am going to suggest can't make it much worse. Download a manual..readily available and do a cold start on the system. Run the normal start up after that and unless you have defective hardware you'll be back to factory defaults on the system..voice mail will remain intact. It sounds like corrupt database.

To do PC admin yes you need the correct software. All programming can be done through the telephone without it though.

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