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TG7511CX(e).book Page 40 Wednesday, March 24, 2010 8:41 AM
Useful Information
Problem
Cause/solution
Noise is heard, sound
L You are using the handset or base unit in an area with
cuts in and out.
L Move closer to the base unit.
L If you use a DSL/ADSL service, we recommend
L Unplug the base unit's AC adaptor to reset the unit and
Sound quality seems
L You have registered a handset that is not
to be getting worse.
The handset does not
L The ringer volume is turned off. Adjust ringer volume
ring.
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
L The handset is too far from the base unit. Move closer
L Another unit is in use. Wait and try again later.
L The key lock feature is turned on. Turn it off (page 17).
Caller ID
Problem
Cause/solution
Caller information is
L You must subscribe to a Caller ID service. Contact
not displayed.
L If your unit is connected to any additional telephone
L If you use a DSL/ADSL service, we recommend
L Other telephone equipment may be interfering with
40
high electrical interference. Re-position the base unit
and use the handset away from sources of
interference.
connecting a DSL/ADSL filter between the base unit
and the telephone line jack. Contact your DSL/ADSL
provider for details.
turn off the handset. Reconnect the adaptor, turn on
the handset and try again.
recommended (page 4). The clearest sound quality is
only possible by registering the recommended
handset.
(page 23).
setting (page 12).
and try again.
your service provider/telephone company for details.
equipment, remove and plug the unit directly into the
wall jack.
connecting a DSL/ADSL filter between the base unit
and the telephone line jack. Contact your DSL/ADSL
provider for details.
this unit. Disconnect the other equipment and try
again.
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