I have problems making WiFi calls on my Sony Xperia 10 III
If you can't use WiFi Calling, there may be several causes of the problem.
1. Find 'Advanced'
Slide two fingers downwards starting from the top of the screen.
- Slide two fingers downwards starting from the top of the screen.
- Press the settings icon.
- Press System.
- Press Advanced.
- Press Software update. If a new software version is available, it's displayed. Follow the instructions on the screen to update the phone software.












