If you’re a busy person who likes to keep your iPhone screen locked while you’re on a call, there are a few things you can do to make sure that happens. First, make sure that your phone is turned off and locked. Second, make sure that the call is in progress and not paused. Third, use a strong password or two-factor authentication if you have it enabled. Finally, if all of these measures don’t work for you, try turning off the phone’s screen timeout feature and restarting it.
