Samsung Galaxy Z Flip4 - Use the Phone app for calls; Make a call; Answer, decline, or end a call

App continuity
App continuity allows your apps to transition between the cover screen and the large
display seamlessly.
Continue apps on cover screen
Choose which apps you want to continue using on the cover screen when you close
your device (Galaxy Z Fold4 only).
◌
From Settings, tap Display > Continue apps on cover screen, and tap apps to
enable this feature.
Getting started
42
Devices and software are constantly evolving — illustrations are for reference only.