Panasonic KX-TG2721AL Operating Instructions Manual page 36

Useful Information
Problem
Noise is heard, sound cuts
in and out.
The handset does not ring.
The base unit does not
ring.
I cannot make a call.
Caller ID
Problem
Caller information is not
displayed.
Caller information is slow
to display.
The name stored in the
phonebook is not fully
displayed while an outside
call is being received.
36
Cause/solution
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
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.
R The ringer volume is turned off. Adjust ringer volume
(page 14).
R The ringer volume is turned off. Adjust ringer volume
(page 19).
R The unit is not designed to be used with rotary/pulse dialling
services.
Cause/solution
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
socket.
R 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.
R Other telephone equipment may be interfering with this unit.
Disconnect the other equipment and try again.
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 19).
R Move closer to the base unit.
R Edit the phonebook entry name to fit in 1 line of text (page 16).