Wifi calling logo

Since I got my new iPhone 15 I can’t get the WiFi calling logo to appear on my normal or call screen.

It shows on the clock wake up screen but when you go to use phone it disappears.

You then can’t tell if your call is on network or WiFi calling without dropping the call and going to startup screen 🤪

On my old iPhone 8 it showed constantly beside network bars if connected to WiFi calling

It is definitely initiated and working but I would like to know when I’m on a call if I’m on WiFi calling or network.

Thankyou