To be clear I mean like email, integrated beeper or simple speaker capable of multiple tones, other push options, maybe SMS, smart speaker integration, calendar reminder integration…stuff like that added to notifications.
ideally notifications that are not all phone dependent also, because not everybody lives with their phone in their hand at all times.
Selectable audio alerts the phone might be the easiest option to implement, but you can’t go wrong with a couple extra methods. Audio is often better than visual since ears are 360 and go around walls and eyes do not.