Sony CM-S1100 Operating Instructions Manual page 21

If the caller supports caller ID
The caller's phone number appears on the display when you
receive a call, if both the caller and the carrier support this
feature.
If the caller supports caller ID and the number matches a Phone
Book entry, the name that you stored with the number (if any) is
displayed also.
If you miss a call
If you miss an incoming call, a message appears similar to the
one in the following display. To return to the standby display,
either press ,
CLR
END
the caller's number is stored in the Calls List (see page 33).
, or . If the caller supported caller ID,
Incoming
Call From
123-456-7890
Incoming
Call From
SONY
123-456-7890
You have
missed
15 calls.
:OK
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