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Appendix
Troubleshooting
telephone line. For more details about the line
power, contact your telephone service provider
(charges may apply).
If you neither install batteries nor a telephone
line cord in this telephone, after a few
minutes, the telephone automatically clears
the directory, call history, speed dial memory
locations, and the last number dialed memory.
At the same time, all settings in menu options
change back to the default ones.
•
My caller ID features
are not working
properly.
• Caller ID is a subscription service. You must
subscribe to this service from your telephone
service provider for this feature to work on
your telephone.
The caller might not be calling from an area
that supports caller ID.
Both your and the caller’s telephone service
providers must use equipment compatible with
caller ID service.
If you select NEW CALL FIRST in CALL LIST
ORDER, the telephone first shows the caller
ID entries that have not been reviewed, then
entries starting with the most recent call in
the call history. If you select BY TIME, the
telephone shows the caller ID entries starting
with the most recent call in the call history
(see Feature summary on page 15).
If you subscribe to high-speed Internet
service (DSL - digital subscriber line) through
your telephone line, you must install a DSL
filter between the telephone line cord and
the telephone wall jack (see Telephone
installation on page 8). The filter prevents
noise and caller ID problems caused by DSL
interference. Please contact your DSL service
provider for more information about DSL filters.
Make sure the area codes are set correctly in
the telephone (see Set home area code on
page 16 and Set local area code on page 16).
Reset the telephone. See Common cure for
electronic equipment on page 44.
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