AASTRA 4225 for MX-ONE Telephony Switch User Manual
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Dialog 4223 Professional/Dialog 4225 Vision
Troubleshooting
Dialog 4225 Vision:
Å
Select
PhoneSet
in the top menu (see display).
Down
or
Up
Press to frame
Local Test Mode
(see display).
Select
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 self-test to indicate that each key lamp is OK.
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.
Exit
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 self-test is automatically
finished after about 30 seconds.