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4-1 Troubleshooting
If your IP Phone is not working properly, before you send it back
to your dealer or our company, please check this
troubleshooting checklist first. Your problem could be very easy
and you can try to solve it by yourself!
Scenario /
Problem
Solution
Nothing is
displayed on LCD
screen
Please check the status of A/C adapter,
is it securely connected to the electric
outlet on the wall?
Is the power cord of A/C adapter still
connected to IP Phone?
If you use Power-over-Ethernet, please
check the status of your POE hub /
switch, and Ethernet cable.
Check contrast setting, and try a darker
setting.
Press ‘SPEAKER’ button on the phone,
or lift handset. If you can hear dialing
tone, please return this IP phone to your
dealer.
Contact your dealer if above solution
don’t work.
I see malformed /
strange text
displayed on the
LCD screen of IP
Phone
If you see strange text / graphic
displayed on LCD screen, please
disconnect the power cord and
Ethernet cable, and reconnect after 10
seconds.
If you just tried to upgrade firmware
and this happens, contact your dealer.