I have a SPA525G2, updated with the latest firmware 7.5.4. I constantly look over and find my phone rebooting, where all the keys are flashing, and on the screen it displays, "Refreshing Voice Component". I called support and being I was just outside my 1 year, they would not help me . They did suggest that it is normally caused by a provisioning issue. Really would like to get this fixed if anyone has any idea on where to go from here.