bpwest80, Jun 12, 2019 : My phone is forcing VoLTE even though I have "WiFi Calling" set as preferred. If I switch from LTE to WiFi the only way to get Wi-Fi Calling to work is work a reboot. After the reboot, VoWiFi shows in the status bar. It's been this way since I got it. Every now and then it'll switch on it's own but that rarely ever happens. It usually takes a reboot.