To turn this indicator off:
1.Press PROG.
2.Press 
or 
until the screen displays CLR VOICEMAIL.
3.Press SELECT. The screen displays CLEAR? and YES flashes.
4.Press SELECT or PROG to confirm. You will hear a confirmation tone.
nNote: The clear voicemail feature only turns off the displays NEW
VOICEMAIL and 
on the handset, and the VOICEMAIL light on the telephone base. It does not delete your voicemail messages.
Setup
13