Sony 4-113-168-11(2) Operating Instructions Manual page 48

1
Press ERASE while you are playing
back the message you want to
erase, or press and hold ERASE
during the stop mode.
A beep will sound and the message
number and "ERASE" will flash.
2
Press ERASE again.
The message is erased and the
remaining messages will be
renumbered. (For example, if you
erase Message 3, Message 4 will be
renumbered as Message 3. When
erasing is completed, the unit will
stop at the beginning of the following
message.)

GB
To cancel erasing
Press  (stop) before step 2.
To erase another message
Proceed with the same steps again from
the beginning.
To erase a part of one message
Divide the message into two messages
first, then proceed with the same steps
from the beginning.