Useful Information
45
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*1 KX-TG6421 series: page 3
Caller ID/Talking Caller ID
*1
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 the ringer
volume (page 21).
L Silent mode is turned on. Turn it off (page 25).
The base unit does not
ring.
*1
L The ringer volume is turned off. Adjust the ringer
volume (page 15).
I cannot make a call. L The dialing mode may be set incorrectly. Change
the setting (page 13).
L The handset is too far from the base unit. Move
closer and try again.
I cannot make long
distance calls.
L Make sure that you have long distance service.
Problem Cause/solution
Caller information is not
displayed.
L You must subscribe to Caller ID service. Contact
your service provider/telephone company for
details.
L If your unit is connected to any additional
telephone equipment such as a Caller ID box or
cordless telephone line jack, 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 The name display service may not be available in
some areas. Contact your service
provider/telephone company for details.
L Other telephone equipment may be interfering
with this unit. Disconnect the other equipment
and try again.
Problem Cause/solution
TG640x(e).book Page 45 Wednesday, November 26, 2008 2:33 PM
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