By default, calls are made via SIM card 1, but the Samsung device can also be configured to use SIM card 2, or the device always makes a query before a call.
Note: The default SIM card for calls can also be changed via the status bar.
- Open the Settings
- Tap on Connections
- Tap on SIM card manager
- Tap on Calls
- Choose between Ask always, SIM 1 and SIM 2