You can use Kiosk Mode the customize the device screen to keep things simple for users and allow only those apps required for their particular work to be available. For more information on Kiosk Mode please contact the Sonim Customer Experience Center at 1-833-MY-SONIM (1-833-697-6646) or email us at [email protected]  We are open 24 hours a day, Monday-Friday and we will further assist in troubleshooting.