Caller id operation, Display screen messages – AT&T Trimline 250 User Manual
Page 19
18
CALLER ID OPERATION
Display Screen Messages
Screen Displays:
When:
PRIVATE NAME
The other party is blocking name information.
PPP
The other party is blocking number information.
PRIVATE CALLER
The other party is blocking name and number
information.
UNKNOWN NAME
Your phone company is unable to receive
information about this caller’s name.
UUU
Your phone company is unable to receive
information about this caller’s number.
UNKNOWN CALLER
Your phone company is unable to receive
information about this caller’s name and number.
EXTENSION USED
An extension phone on this line is being used, so
call information cannot be received.
Err
There is a problem with Caller ID transmission
from the telephone company.
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