Troubleshooting
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Exit
Dialog 4225 Vision:
Select PhoneSet in the top menu (see display).
Press to frame Local Test Mode (see display).
Press (see display).
The display shows the firmware revision state and Selftest OK for a few seconds. If there is something wrong, a fault message appears. Inform your system administrator about the fault message.
All the key lamps on the phone and connected extra key panels should be switched on during the
After a few seconds the display is checked (the display is completely dark). The display is OK when there are no light dot(s) or line(s). The light frame around the display should be there.
Press the left most display Menu key to exit (see display). (However the text is not visible when the display has turned black, the exit feature is still on that Menu key).
Note: If you do not press Exit, the
Dialog 4223 Professional/Dialog 4225 Vision | 133 |