What to do if the Xiaomi Watch S3 eSIM version call prompts "Bluetooth disconnected, call failed"?

The default call mode for the eSIM version of the watch is Bluetooth communication mode, with a prompt saying [Bluetooth disconnected, call failed]. You need to turn on the phone's Bluetooth and check the connection status between the watch and the phone.
After activating the eSIM function, set it to independent communication mode in [Watch Settings] >> [Network and Connections] >> [Mobile Network], allowing independent calls without relying on Bluetooth connection.