Nokia N80 blue LED: turn off / turn on

This thing has nothing to do with Windows , or Linux for that matter, but it's an interesting fact that i figured it out.
So, if you have a Nokia phone with a flashing blue LED on front, you can witch it off by going to Menu -> Tools -> Settings -> Phone -> Display -> Sleep Mode , then select OFF. This way, your display will show you the time, missed calls, etc.
It's interesting because on my phone this option is available only when Englis language si selected.