Problem Possible Cause Solution
You cannot dial. The number that you
dialed is restricted by your
phone system.
Consult your administrator
or your phone system
dealer/service provider.
Key lock mode is on. To cancel the mode, press
and hold for about 2
seconds.
For details, see 2.9 Key
Lock, page 81.
The radio channel is busy
or a radio communication
error occurred.
Try again later.
The handset stops
working during
operation.
An unknown error has
occurred.
• Turn the handset off, and
then turn it back on.
For details, see
2.3 Location of Controls,
page 28.
• Re-insert the battery and
try again.
For details, see
9.2.1 Battery Installation,
page 132.
You cannot use the
handset/desk phone
during a power
failure.
The handset/desk phone
will not function during a
power failure because the
base unit stops emitting
radio waves.
—
The headset does
not work.
A headset tone cannot be
heard when receiving an
incoming call when the
headset is attached.
• Make sure the headset
tone setting is set to "On".
See Incoming Option, page
148
• Make sure the headset
jack is connected properly.
See 2.3 Location of
Controls, page 28
10.1.8 Troubleshooting
170
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