Panasonic KX-TG6521 Series Operating Instructions Manual page 41

TG6521AL(e).book Page 41 Friday, February 26, 2010 5:07 PM
Problem
Noise is heard, sound cuts in
and out.
Sound quality seems to be
getting worse.
The handset does not ring.
The base unit does not ring.
I cannot make a call.
Useful Information
Cause/solution
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 filter (contact your
DSL/ADSL service provider) to the telephone
line between the base unit and the telephone
line socket. 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.
L You have registered a handset that is not
recommended (page 4). The clearest sound
quality is only possible by registering the
recommended handset.
L The ringer volume is turned off. Adjust ringer
volume (page 20).
L The ringer volume is turned off. Adjust ringer
volume (page 20).
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 The key lock feature is turned on. Turn it off
(page 15).
L The unit is not designed to be used with
rotary/pulse dialling services.
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