Sony SPP-A973 - Manual (Page 44)

Looking at the Caller ID list
riie phone stores the data of the last 20 calls received including "OUT
OF AREA" and "PRIVATE" calls. It keeps track of all calls received;
even if they were not answered.
Viewing the Caller ID list
^'ou can look through the Caller ID list to check the phone number
and/or name of the calls received.
1
Turn Jog Dial.
The display shows the number
of "NEW" (calls which you have
not viewed) and "OLD" (calls
which you have viewed) calls.
NEW 08 OLD I2
Turn Jog dial down to display
older data or up to display
newer data.
44“ Caller ID Features