1. To turn on or off Wi-Fi Calling, swipe down from the top of the screen and tap the Wi-Fi Calling icon.
    LG G4 Wi-Fi calling settings in notification bar
  2. First-time users will be prompted to verify their emergency address. Tap CONTINUE.
    Phone showing prompts to verify a first-time user's emergency address; arrow points to the "CONTINUE" button 
  3. Tap GET STARTED.
    LG G4 Wi-Fi Calling
  4. Tap Continue.
    CONTINUE button is circled during the emergency address verification process 
  5. Tap Continue.
    CONTINUE button is circled as the next step in verifing the user's emergency address 
  6. Read the on-screen prompts, enter your Emergency 911 Address, then tap Verify address.
    Prompts to complete "Emergency 911 Address" are shown; arrows point to address text boxes and "Verify address" button 
  7. Verify the address and tap Use this address.
    Note: If the address is not correct, tap Enter a different address to re-enter the address.
    Screen shown verifing the user's emergency address, highlighting the "Use this address" button 
  8. When setup is complete, tap OK.
    Phone showing address setup complete for Wi-Fi calling; "OK" button is circled 
  9. When your phone is connected to Wi-Fi, Wi-Fi Calling is on, and a cellular connection is unavailable or poor, you'll see the Wi-Fi Calling icon in the notification bar.
  10. Making a call is the same whether on cellular or Wi-Fi. From the home screen, tap Phone, dial the Desired number, and then tap the Call icon. You can tell that a call will go over Wi-Fi when you see a Wi-Fi icon within the Call icon.
    Note: To learn more see About Wi-Fi calling or visit www.att.com/wificalling.
    Final step to make a call on cellular or Wi-Fi is shown: Arrow points to dialed phone number, "Call" icon is circledÂ