AT&T EL52109 Reasons for missing caller ID information

Caller ID
34
Reasons for missing caller ID information
There are also occasions when other information or no information shows for
various reasons:
On-screen
message
Reason
PRIVATE
NUMBER
The caller prefers not to show the phone number.
PRIVATE
NAME
The caller prefers not to show the name.
PRIVATE
CALLER
The caller prefers not to show the phone number and
the name.
UNKNOWN
NUMBER
Your local telephone service provider cannot determine the
caller’s number.
UNKNOWN
NAME
Your local telephone service provider cannot determine the
caller’s name.
UNKNOWN
CALLER
Your local telephone service provider cannot determine
the caller’s name and telephone number. Calls from other
countries may also generate this message.