Thanks for being with Samsung and for sharing your query. We would like to inform you that voice call recorder feature is not available in your device so you may use any third party application for Call recorder and scanner. You may use Power key and home key together to take a screenshot. Alternatively you can use palm motion to click screenshot under option main menu >>advance feature >>Palm swipe to capture also your device has geomagnetic sensor that let you determine the position of a device.
