Useful Information
40
Caller ID
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.
L
Unplug the base unit’s AC adaptor to reset the unit and
turn off the handset. Reconnect the adaptor, turn on
the handset and try again.
Sound quality seems
to be getting worse.
L
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.
L
The ringer volume is turned off. Adjust ringer volume
(page 23).
L
Night mode is turned on. Turn it off (page 26).
I cannot make a call.
L
The dialling mode may be set incorrectly. Change the
setting (page 12).
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
The key lock feature is turned on. Turn it off (page 17).
Problem
Cause/solution
Caller information is
not displayed.
L
You must subscribe to a Caller ID service. Contact
your service provider/telephone company for details.
L
If your unit is connected to any additional telephone
equipment, remove and plug the unit directly into the
wall jack.
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.
L
Other telephone equipment may be interfering with
this unit. Disconnect the other equipment and try
again.
Problem
Cause/solution
TG7511CX(e).book Page 40 Wednesday, March 24, 2010 8:41 AM