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Appendix
Troubleshooting
• Disconnect the telephone base from the telephone wall jack and plug in another corded
telephone. If calls are still not clear, the problem is probably in the wiring or telephone service.
Contact your telephone service provider (charges may apply).
• 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 6). The filter prevents noise and caller ID problems
caused by DSL interference. Please contact your DSL service provider for more information
about DSL filters.
I hear other calls when using the telephone.
• Disconnect the telephone base from the telephone wall jack. Plug in a different telephone. If
you still hear other calls, the problem is probably in the wiring or telephone service. Contact
your telephone service provider (charges may apply).
appears on the screen.
• The batteries need to be replaced. Replace four new alkaline AA batteries.
Display screen is blank.
• Make sure alkaline batteries with enough charge are installed.
Operation during a power failure.
• This telephone operates during a power failure if a telephone line cord is installed 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 installed
between the telephone wall jack and the telephone base..
• If you neither install batteries nor a telephone line, after a few minutes, the telephone clears the
directory, call log history, speed dial memory, and the last number dialed memory. At the same
time, all settings in menu options change back to the 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 filter between the telephone line cord and the telephone
wall jack (see Telephone installation on page 6). 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 (see
Home area code
on page 14 and
Local area
code
on page 14 ).
• Reset the telephone. See Common cure for electronic equipment: on this page.
