Useful Information
57
*1 KX-TG8421
Noise is heard, sound cuts in
and out.
L
You are using the handset or base unit in an
area with high electrical interference. Re-
position the base unit and use the handset
away from sources of interference.
L
Move closer to the base unit.
L
If you use a DSL/ADSL service, we
recommend connecting a DSL/ADSL filter
between the base unit and the telephone line
jack. Contact your DSL/ADSL provider for
details.
The handset does not ring.
L
The ringer volume is turned off. Adjust ringer
volume (page 25).
L
Night mode is turned on. Turn it off (page 29).
The base unit does not ring.
L
The ringer volume is turned off. Adjust ringer
volume (page 26).
I cannot make a call.
L
The dialling mode may be set incorrectly.
Change the setting (page 17).
L
The handset is too far from the base unit.
Move closer and try again.
L
Another unit is in use. Wait and try again later.
L
Answering system is being used.
Wait and
try again later.
L
You dialled a call restricted number (page 30).
L
The key lock feature is turned on. Turn it off
(page 20).
Problem
Cause/solution
TG8411-8421FX(e).book Page 57 Tuesday, March 3, 2009 2:54 PM