Problem Cause/solution
Noise is heard, sound cuts
i
n and out.
R 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.
R Move closer to the base unit.
R 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.
Sound quality seems to be
g
etting worse.
R You have registered a handset that is not recommended
(page 4). The clearest sound quality is only possible by
registering the recommended handset.
The handset does not ring. R T
he ringer volume is turned off. Adjust ringer volume (page 14,
22).
R Night mode is turned on. Turn it off (page 26).
I cannot make a call. R T
he dialling mode may be set incorrectly. Change the setting
(page 13).
R You dialled a call restricted number (page 30).
R The key lock feature is turned on. Turn it off (page 16).
Caller ID
Problem Cause/solution
Caller information is not
d
isplayed.
R You must subscribe to a Caller ID service. Contact your
service provider/telephone company for details.
R If your unit is connected to any additional telephone
equipment, remove and plug the unit directly into the wall jack.
R 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.
R Other telephone equipment may be interfering with this unit.
Disconnect the other equipment and try again.
Caller information is slow
t
o display.
R Depending on your service provider/telephone company, the
unit may display the caller’s information at the 2nd ring or later.
Set the first ring to “Off” (page 22).
R Move closer to the base unit.
Time on the unit has
s
hifted.
R Incorrect time information from incoming Caller ID changes the
time. Set the time adjustment to “Manual” (off) (page 22).
SMS (Short Message Service)
Problem Cause/solution
The SMS message
c
entre number is logged
in the caller list and the
message is not received.
R Someone tried to send you a message while SMS is turned off.
Turn it on (page 35).
43
Useful Information
