Realme
Set Default Phone App auf Realme
When a third-party dialer is installed on a Realme phone, Realme UI has to decide which app handles incoming calls and outgoing dial requests. If the wrong app is set as default, contact shortcuts, widget dialers, and call notifications can open an app you never intended to use for calls.
This assignment lives in the system's default app registry, not inside the dialer app itself. Uninstalling the unwanted app does not always fix the routing, since the system may still reference it until a new default is confirmed.
How to change it
Go to Tap on Settings ➔ Tap on App management ➔ Tap on Default apps ➔ Tap on Phone app ➔ Set the Default Phone app. Pick the phone app you actually want to handle calls and confirm the selection.
Once saved, incoming calls, contact taps, and dial shortcuts will route through that app only. If you still see the old app appearing, restart the phone once to force the system to apply the new default cleanly.