This happens to me quite often:
You’re on a call and the line drops due to some network problem and the connection is lost. Or, say, you’re trying to call someone but their line is busy. In such an event iPhone will display this (or similar) screen with the following button arrangement:
Now, if you decide to call back then you would press the “Call Back” button. But here’s the thing. At the very moment, between the seconds and milliseconds of your decision to call back and your finger moving to press the “Call Back” button the other person has dialed you and your iPhone has just displayed this screen with the following button arrangement:
But it is too late! You inevitably press the “Decline” button because that’s where the “Call Back” button was just a second ago.
It is very annoying.


i think what we have here is one of the most interesting challenges of our time.
ah yes...the old switcheroo..