AT&T CL83210 Abridged User Manual page 102

Appendix
Troubleshooting
Make sure that the answering system is on. ANS ON should show on the
handset and the /ANS ON/OFF light on the telephone base should be on.
If toll saver is activated, the number of rings changes to two when you have
new messages stored.
by your telephone service provider.
If you subscribe to voicemail service, change the number of rings so that
your answering system answers before your voicemail. To determine how
many rings activate your voicemail, contact your telephone service provider.
If there is a fax machine connected to the same telephone line, try
disconnecting the fax machine. If that solves the problem, consult your fax
machine documentation for information on compatibility with answering
systems.
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