About an hour ago, I was messing around with the emergency call screen on my iphone(just dialed 112) and then I went downstairs to do something. I went downstairs and when I came back up the emergency call screen was gone(I thought it was supposed to stay on?) and when I woke the screen up, the dialer was still there and I pressed back and it went to my homescreen Is this something known? Or maybe it was just some random glitch on my phone. I'm going to try to repeat it.