Turning Off Call Notification
Please try to press the settings icon which the arrow is pointed at.
Next is to go to settings, Press the settings where the arrow is pointed.
After Clicking the settings, this menu will be shown. Please Click Incoming Calls.
By Clicking Incoming Calls this menu will pop-up, Choose Off to turn Off Notification from Incoming Calls.
This is what will be on your phone screen if you have turned Off the notification from Incoming Calls.
You have done it, You have turned Off notifications from Incoming Calls.