Wi-Fi Calling settings don't transfer after switching devices and/or performing a factory data reset. You need to enable W-Fi Calling manually if you want to use it.
If powered off, press and hold the Power button until the ASUS logo appears then release.
From the Welcome screen, select the appropriate language then tap NEXT.
Allow several seconds for activation to complete.
If presented with a Phone Activation screen, tap NEXT or tap ACTIVATE NOW (if available).
If prompted, enter the last 4 digits of the account owner's social security number or the billing password.
If activating a new phone, ensure the old phone is powered off and allow several minutes for the deactivation of the old phone to complete.
If presented with a 'Set up your ASUS ZenFone AR' screen, tap Set up as new.
If presented with a 'Verify your account' screen, sign in with the Google account that was previously synced on the device, tap NEXT then tap No.
From the Add your Account (Google) screen, tap SKIP > SKIP.
From the Google services screen, select any of the following to turn on or off then tap NEXT (may require scrolling to the bottom).
Use Google's location service to help apps
Improve location accuracy
Help improve your Android experience
From the Name screen, enter the first and last name then tap NEXT.
From the Protect your phone screen, tap No, thanks > NEXT > SKIP ANYWAY.
From the Phone Activation screen, tap NEXT.
From the Verizon Cloud screen, tap SKIP > NOT NOW.
From the Email Accounts screen, tap SKIP (lower-right).