AT&T 2320 - Manual (Page 48)

CALLER ID
PROBLEM SOLUTION
If the caller’s name • You should call your service provider
or phone number is to confirm that you subscribe to
not displayed during combined Caller ID with Call Waiting
Call Waiting: service.
• Caller ID information received during
Call Waiting is displayed only on the
handset that is in use. The information
is stored in the Caller ID log on ALL
registered handsets.
• Make sure the battery is charged.
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