User Manual

40
Appendix
Troubleshooting
Display screen is blank.
Make sure you have properly installed four working alkaline batteries (See
Battery installation on pages 4-5).
Operation during a power failure.
This telephone operates during a power failure if a telephone line cord is
plugged between the telephone wall jack and the telephone base. You are
able to answer calls with the handset, and make calls using the dialing keys.
No other features work unless batteries are installed. All settings in menu
options are retained during a power failure if a telephone line cord is plugged
between the telephone wall jack and the telephone base.
If you neither install batteries nor a telephone line, aer a few minutes, the
telephone clears the directory, caller ID history, speed dial memory, and the
last number dialed memory. At the same time, all settings in menu options
change back to their default settings.
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 may 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 subscribe to high-speed Internet service (DSL - digital subscriber
line) through your telephone line, you must install a DSL lter between the
telephone line cord and the telephone wall jack (see Telephone installation
on page 6). The lter prevents noise and caller ID problems caused by DSL
interference. Please contact your DSL service provider for more information
about DSL lters.
Make sure the area codes are set correctly (see Home area code on page 13
and Local area code on page 14).
Reset the telephone. See Common cure for electronic equipment on
page 41.
The telephone does not receive caller ID or the telephone does not display
caller ID during call waiting.
Make sure you subscribe to caller ID with call waiting features provided by
the telephone service provider.
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.
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