The code works and must be entered every time the phone is restarted. So after the phone reboot repeat this process and go under the Network&Internet/Internet/Sim1 or Sim2 and I will see 4G Calling and WiFi calling menus.
I also experienced the same thing with soft version 33.0804.2060.100. when the phone was connected to a Samsung watch 4.I also noticed a problem during the testing period.When the phone is connected to the Samsung Watch 4 with the possibility to answ...
Thank you. It partially worked, but it worked, thanks. However, the team of developers must say why after the restart VoLTE and VoWiFi disappear from the menu and don't work anymore. The code must be entered again and functions are activated.