AT&T CL4939 user manual On the answering system on page 43. When

Appendix

Troubleshooting

The telephone does	•	Make sure you subscribe to caller ID with call
not receive caller ID		waiting features provided by the telephone service
or the telephone does		provider.
not display caller ID	•	The caller might not be calling from an area that
during call waiting.
		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.
The answering	•	Make sure the answering system is on (see To turn
system does not		on the answering system on page 43). When the
answer after the		answering system is on, the ANS ON/OFF light
correct number of		should be lit.
rings.	•	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.
The announcement	•	When recording the announcement, make sure you
message is not clear.		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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