Caller ID

Reasons for missing caller ID information

There are also occasions when other information or no information shows for various reasons:

On-screen

Reason

message

 

PRIVATE

The caller prefers not to show the phone number.

NUMBER

 

 

 

PRIVATE

The caller prefers not to show the name.

NAME

 

 

 

PRIVATE

The caller prefers not to show the phone number and

CALLER

the name.

 

 

 

UNKNOWN

Your local telephone service provider cannot determine the

NUMBER

caller’s number.

 

 

 

UNKNOWN

Your local telephone service provider cannot determine the

NAME

caller’s name.

 

 

 

UNKNOWN

Your local telephone service provider cannot determine

CALLER

the caller’s name and telephone number. Calls from other

countries may also generate this message.

 

 

 

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AT&T EL52109 user manual Reasons for missing caller ID information, On-screen Reason Message