Wifi calling not available

[kclive]

I have a S10+ that was bought from US Cellular that I am now using on Straight Talk with a TMobile sim. I had Wifi calling working just fine before I switched to the new Beta update. After switching back to Android 9 it now says "This is currently unavailable under the call settings for Wifi calling. I am at a loss. I live in an area were the cellular signal is spotty at best and need Wifi calling to work.

Anyone have any ideas?

Thanks

 

[kclive]

I have a S10+ that was bought from US Cellular that I am now using on Straight Talk with a TMobile sim. I had Wifi calling working just fine before I switched to the new Beta update. After switching back to Android 9 it now says "This is currently unavailable under the call settings for Wifi calling. I am at a loss. I live in an area were the cellular signal is spotty at best and need Wifi calling to work.

Anyone have any ideas?

Thanks

Got it working using U1 firmware.

 

[Moises_529]

I cant seem to find wifi Calling on the U1 firmware. I'm using an ATAT Sim.

 

[jhs39]

I cant seem to find wifi Calling on the U1 firmware. I'm using an ATAT Sim.

AT&T doesn't like unlocked phones so it's possible the option isn't showing up because of that. Many AT&T customers with unlocked phones have reported that they needed to contact AT&T customer service to get WiFi Calling or Volte working.