STEP ONE ENABLE HD CALLING
ANDROID
From a Home screen, tap the Apps icon.
Tap Settings.
Tap Advanced Calling.
Tap Activate Advanced Calling.
To continue, review the disclaimer then tap Activate.
Review the added add-ons and the removed add-ons (if any) then tap Continue.
From the "Congratulations!you now have Advanced Calling" section, tap OK.
Restart device in 5 minutes to complete activation.
iPHONE
From the Home screen, navigate:Settings > Cellular.
Tap Cellular Data Options.
Tap Enable LTE.
Tap Voice & Data to begin activation (this may take up to 2 minutes).
Avoid placing calls during this process ("Voice & Data" shows in gray while on a call).
If activation is successful, a check mark shows next to "Voice & Data".
If activation is not successful, the device restarts after 6 minutes and incompatible add-ons must be removed in order for HD Voice to be activated.
STEP TWO ENABLE WIFI CALLING
Android:
From the Home screen, navigate: Apps icon > Settings > Advanced Calling.
If unavailable, navigate: Apps icon > Settings > More > Advanced Calling.Tap Activate Wi-Fi Calling.
If you have downloaded the Package Disabler Pro app or a similar app, disable it if the Wi-Fi calling activation process has an error. After Wi-Fi calling is activated and working, re-enable the app for use.

To proceed, review the Terms & Conditions then tap CONTINUE.
Ensure the Terms & Conditions option is checked .Enter the emergency location information (E911) address then tap SAVE.
This info gets transmitted to the emergency dispatcher for all 911 calls made over a Wi-Fi network. If address validation fails then the users will be prompted to enter a new address until a valid address is enteredUpon successful validation of the address, Wi-Fi Calling turns on.
Power-cycle the device if not in the Verizon Wireless coverage area or travelling internationally.

iPhone:
Settings > Phone > Wi-Fi Calling. You might need to enter or confirm your address for emergency services.*
If Wi-Fi Calling is available, you’ll see Wi-Fi after your carrier name in the status bar. Then your calls will use Wi-Fi Calling.