Show hangup button when in call on lockscreen
In the current state, you cannot hang up a call from the lockscreen that you answer with the small notification that shows. There should be either a embedded dialer popup like Purism has in phosh with controls to hang up the call, use the number keys to input information, and a speaker key (Which allows you to see all the information you would normally see in the actual dialer when you have it unlocked)... Or at the very least a notification that shows after you hit answer which has a hang up button (and possibly mute and speaker key).