Sony SPP-A5000 - Manual (Page 41)

To go back to previous messages-------------------------
Turn the digital message shuttle until the pointer is
approximately at the REPEAT indicator, then hold the shuttle
until the phone jumps to the desired message.
When the digital message shuttle is released, the phone resumes
playback.
To skip the current message-------------------------------
Turn the digital message shuttle until the pointer is
approximately at the SKIP indicator.
To jump to foiiowing messages----------------------------
Turn and hold the shuttle until the phone skips to the desired
message.
When the digital message shuttle is released, the phone resumes
playback.
Stopping piayback-
Press PLAY/STOP.
Using as a telephone answering machine