Hi Brittany, found this in some old paperwork, think it is what you need, if it works could you please post back to let me know then I can highlight it as being correct.
CHIME
To activate this feature, press [ 1 ] for "CHIME" mode.
Five seconds after pressing the "CHIME" digit, a one second tone will occur indicating that this feature has been activated.
Repeat this procedure to turn the "CHIME" feature off.
acorn
May 2008