Wifi calling can be disabled under settings by going to the options for the SIM scrolling down to WiFi calling and turning it off. How to hide the Wi-Fi calling notification on Samsung devicesLong press the Wi-Fi calling notification.Access notification details.Adjust the notification importance. How do I turn off the WiFi calling notification? How do I get WiFi calling on my unlocked phone?.How do I turn on WiFi calling on my Samsung Galaxy s20?.Does the Samsung a21s have WiFi calling?.How can I tell if WiFi calling is working?.