AT&T CL4939 User Manual page 62

Appendix
Troubleshooting
The telephone does
not receive caller ID
or the telephone does
not display caller ID
during call waiting.
The answering
system does not
answer after the
correct number of
rings.
The announcement
message is not clear.
• 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.
• If you subscribe to high-speed Internet service
(digital subscriber line - DSL) 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 7). 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 answering system is on (see To turn
on the answering system on page 43). When the
answering system is on, the ANS ON/OFF light
should be lit.
If you choose tS 2-4 (or tS 4-6) in # OF RINGS,
•
the answering system picks up incoming calls after
two (four, if you select tS 4-6) rings if there are any
new messages. When there are no new messages,
the answering system picks up incoming calls after
four (six, if you select tS 4-6) rings (see Feature
summary on page 15).
• If the memory is full or if the answering system is
off, the system answers after ten rings.
• In some cases, the answering system may be
affected by the ringing system used by the
telephone service provider.
• When recording the announcement, make sure you
speak in a normal tone of voice about nine inches
from the telephone base.
• Make sure there is no background noise (television,
music, traffic, etc.) when recording.
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