Why couldn’t this call be an email? Why would you call, when you know that you are near indistinguishable from spam calls about Microsoft services and Nigerian princes?
there are very few situations that require me to use my voice over the phone. the fact you had to tack on that all of the fire alarms in my house were dead to your little hypothetical shows that its a silly concept to begin with
i only pick up for family, because they know i only pick up for emergencies (havent gotten a unannounced call in years). and for my job while i am ln the clock, expected to be available