[jitsi-users] Wake-up from standby

Is there a way to have notebook wake when a Jitsi call comes in?
I know I can set the computer to never sleep but that wastes power and
shortens its life. What happens is that after 15 min. the screen goes to
sleep then after 1 hour the rest of the computer dozes off. I would like to
have it wake and ring when a call comes in.