Sony SPP-A985 - Manual (Page 76)

Additional Information 76 US
It means
Number of messages not yet played back.
Flashes when the day and time is cleared or delayed due to a
power interruption, or when you connect the base phone to the
AC outlet for the first time. Reset the time correctly (page 46).
The announcement only mode is selected (page 55).
The recording area is full. Erase unnecesary messages (page 54).
When the counter shows
Flashing number
CL
A
F
Troubleshooting (continued)
Message counter
The message counter on the base phone shows the following
information.