* "Device ID and Call Information" permission is necessary for turning off noise when incoming call is received. There are times when the space around you is just too loud and you need some kind of a white noise to mask all those distracting sounds, which may come from your noisy neighbors while you are trying to sleep, or from loud colleagues when you are trying to focus on your job, or from a TV in the next room while you are trying to study. White noise is a noise in which all sound frequen