Have you ever put your phone in silent mode (do not disturb mode) and missed important calls because you forgot to turn on the volume? No more missed calls. With Silent Mode Plus, even though the phone is in silent mode, if there is an urgent call, then the phone will ring. Who needs it? Your friend/spouse who never picks up the phone because it is in silent mode. People who often forgets to turn back on the ringer after the movie/class/meeting/work. Students: use schedule feature to automatically silence the phone when the class starts and restore volume when the class finishes. Workers: silence it for work hours or during the meeting. Sleep lovers: people who doesn't want to be waken up by some frank calls but to turn their ringer on for certain people (Use Whitelist) or emergencies (Use Urgent Call feature). Always on call: doctors, nurses, IT managers, have a family member who is sick.