AT&T CL82107 User Manual page 149

Appendix
Troubleshooting
While screening a call, the telephone suddenly stops screening
and connects to the call.
Another handset may have picked up the screening call.
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If you have other telephone system sharing the same telephone
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line, and someone picks up the call on the other telephone
system while the screening is in progress, the screening process
will be terminated and connect you to the caller.
My telephone blocks calls from someone I know.
You may have saved the caller's number in your block list. To
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remove the number from the block list, see Delete a block
entry on page 79.
Blocking calls with numbers saved in my block list only.
If you want to block calls with numbers saved in your block list
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only, and allow all other calls to get through to you, change the
settings to accept calls without numbers and uncategorized
calls. See Control calls without numbers on page 72 and
Control uncategorized calls on page 73.
Blocking all unknown calls.
If you want to block all unknown calls with numbers or names
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that are not in your directory, allow list or star name list, change
the settings to block calls without numbers and uncategorized
calls. See Control calls without numbers on page 72 and
Control uncategorized calls on page 73.
Forwarding all unknown calls to the answering system.
If you want to forward all unknown calls with numbers or names
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that are not in your directory, allow list or star name list to the
answering system, see Control calls without numbers on page
72 and Control uncategorized calls on page 73 to change
the settings.
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