Sony SPP-A9171 - Manual (Page 67)

Additional Information 67 US
Additional Information
It means
Number of messages not yet played back. The counter shows
up to 99 messages. After that, ”99“ flashes to tell you that
there are 100 or more messages.
Flashes when the day and time is cleared due to a power
interruption, or when you connect the base unit to the AC
outlet for the first time (pages 9 and 34).
The announcement only mode is selected (page 40).
The recording area is full. Erase unnecessary messages
(page 45).
When the counter shows
Number (0-99)
P
A
F
Message counter
The message counter on the base unit shows the following
information.