AT&T EL52209 - Manual (Page 41)

Caller ID
36
Reasons for missing caller ID information
There are also occasions when other information or no information shows for
various reasons:
On-screen
message
Reason
QSJWBUF!
OVNCFS
The caller prefers not to show the phone number.
QSJWBUF!
OBNF
The caller prefers not to show the name.
QSJWBUF!
DBMMFS
The caller prefers not to show the phone number and
the name.
VOLOPXO!
OVNCFS
Your local telephone company cannot determine the
caller's number.
VOLOPXO!
OBNF
Your local telephone company cannot determine the
caller's name.
VOLOPXO!
DBMMFS
Your local telephone company cannot determine the
caller's name and telephone number. Calls from other
countries may also generate this message.