Hi there, we've not yet got the S10 added to our list of supported devices for Wi-Fi calling. Here's the current list, which will be updated to include the new Galaxy devices as soon as the feature is activated for them: https://www.telus.com/en/on/support/article/wifi-calling-explained
As I read you don't make a wifi call with your Samsung s10. This is happening due to you do not update your latest update on your phone.
When you upgrade your phone with the latest update your wifi call bug fixes automatically.
Hope this will help you.