WiFi calling not working
Local mobile tower been down for 3 days but WiFi calling not working
iPhone 11 Pro
Question marked as
Contact your Carrier (Cellular Service Provider) The agency who issued the SIM to you as WiFi Calling is carrier specific feature --> Make a call with Wi-Fi Calling - Apple Support
An extract from the above link.
"To use Wi-Fi Calling, you need an iPhone 5c or later on a supported carrier."