36
CC220R
12.2. C
ARE AND
M
AINTENANCE
Turn off your phone. Use a soft damp cloth to wipe it. Do not use a dry cloth, strong liquid
detergents, thinners, alcohol or any other type of solvent to clean your phone. These products
may damage your phone.
12.3. P
ROBLEMS
Refer to the table presented below in case of an operational malfunction:
Problems
Possible causes
Remedies
You are having
trouble reading
or cannot read
the display.
Contrast too low.
Increase the contrast level (“Adjusting the contrast”
page 25).
Phone wall use:
incorrectly attached.
The display is
incorrectly tilted. the
phone has not been
installed in the correct
position.
Re-attach the phone (“Phone installation” page 9).
No display on
the base
screen.
Power line
disconnected and
batteries discharged.
Check the power connection to the phone.
No tone.
The phone jack is not
connected or is
incorrectly connected.
Check the phone cable connection to the wall outlet
(“Connecting the base” page 9).
Make sure you have a dialling tone.
The speaker volume is
too low.
Increase the speaker volume (“Receiving a call”
page 16).
The phone
does not ring
when a call is
received.
The mute mode is
turned on.
Turn off the mute mode (“Activating/deactivating the
silent mode” page 25).
Your party
cannot hear
you.
You have turned on the
mute mode
(microphone off).
Turn off the mute mode (microphone cut off) by
pressing the key
.
Make sure that the “MODE SECRET” message is
not displayed.
You obtain a
“busy” dial tone
for each dialled
number.
Incorrect
flashing time.
Set the flashing time (“Modifying the flash duration
(R Key)” page 29).
Contact your operator to get it to provide you with
the right time.
