And (in a possibly insecure environment) if you try to do a transaction without giving them voice recordings of you saying yes, no, and digits, some automated s

And (in a possibly insecure environment) if you try to do a transaction without giving them voice recordings of you saying yes, no, and digits, some automated systems will reject digit presses with an "Aw shucks, you don't have to type on your keypad, just say yes or no".