When I have a call open in a pop-up, the call button pops up in the exact same place as the end call button. If the person hangs up before I reach the button, I end up calling them again because the call button appears in the same spot.
Also, when you are on a second call, if you want to hang up and the other person hangs up before you reach the button, you end up closing the call on the other line. The end call button for the second line needs to be placed elsewhere, like in the middle.
