this is the information found on the remote access card copy in the manual. Hope it helps
TO: ... PRESS #
play message... 1
play previous... 7 during message playback
erase message...0 during mess playback
turn on system...2
turn off system...3
record message...4 (press 6 again when finished)
record greeting...5 (press 6 again when finished)
stop playback...6 (during message playback)
To set security code...7
Play greeting...8