Help automating Wi-Fi Calling or Airplane mode toggle with Tasker
Create a profile "Home" with state "Wi-Fi Connected" and SSID set to your home Wi-Fi  network name.

On the profile create a task that 


Turns on Airplane Mode
turns on Wi-Fi


This will be triggered when connected to your home network.

On the same profile create an exit task that


Turns off Airplane Mode


This will be triggered when disconnected to your home network.

Finally set your Wi-Fi Calling preference to "Cellular Network Preferred" (or whatever it is on your phone).