Why doesn't show the "Record" button on the calls screen on those devices which is upgraded on One UI 1.0 and One UI 2.0 despite having inbuilt record feature, where it's showing on those devices that launched in One UI 1.0 and One UI 2.0.
Yes, it's not available in caller screen like other company phones provide but you can use default call recording from the settings of Phone app it's existing for each and every phone of Samsung.
