AT&T CL83519 User Manual page 107

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.
If you have other telephone system sharing the same telephone 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 block calls from someone I know.
You may have saved the caller's number to your block list. To remove the
number from the block list. See Delete a block entry on page 57.
Blocking calls with numbers saved in my block list only.
If you want to block calls with numbers saved in your block list 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 50 and Control uncategorized calls on page 51.
Blocking all unknown calls.
If you want to block all unknown calls with numbers or names 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 50 and Control uncategorized calls on page 51.
Forwarding all unknown calls to the answering system.
If you want to forward all unknown calls with numbers or names that are not
in your directory, allow list or star name list to the answering system, see
Control calls without numbers on page 50 and Control uncategorized
calls on page 51 to change the settings.
I've set my LCD language to Spanish or French and I don't know how to
change it back to English.
Press MENU/SELECT on your handset or base in idle mode, then enter 364#
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