You need to enable the Draw over other apps permission so that you can see the Caller ID as well as the call and SMS alerts without delays and also enable all our functions that will work optimally.
How to enable Notification permission ?
1) Please locate CallApp on your device and long press on it until it opens a menu and then click on the ( i ) info mark (as shown in the first picture).
2) Please enter the ‘Permissions’ menu (as shown in the second image).
3) Please go to the bottom of the screen you may be asked to click on ‘Advance’ (as shown in the third image) and enter into ‘Display menu over other apps’ (as shown in the fourth image).
4) Please give this permission to CallApp (as shown in the fifth photo).