Anybody know of a way to turn on wifi calling when cellular radio is turned off?
Say for example I travel internationally and buy a local SIM card for my iPhone 7. That works great: I have a local phone number and local rates for communicating in the foreign country.
Now, I'm returning home to USA and I want to use my VZW phone number again over WiFi in the airport. I want to keep the phone in airplane mode, so that I don't pick up roaming and possibly the $10/day charge.
However, when I swap my VZW SIM back into my phone, wifi calling is not enabled (it was enabled when I popped the SIM out of the phone, but it appears not to be persistent). The only way I can find to enable wifi calling is through the settings app, Phone->Wi-Fi Calling. But this is disabled when in airplane mode.
We know how important it is to have options for avoiding roaming when you can, j_kohl. We are very sad to say though once the Verizon SIM is removed, it needs to reactivate while connected to our network for Wi-Fi calling to work again.
Once you are back in the U.S. you can re-install the SIM, after it refreshes with our network Wi-Fi calling will be available once again. When traveling out of the U.S. you would need to keep the Verizon SIM card installed in the phone for Wi-Fi calling to continue working. Swapping the SIM would disable the option.
StevenG_VZW
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