Wi-Fi Calling on Sprint - Authentication Fix

[Bag of Leaves]

I know I read a thread on here where some folks were having trouble getting Wi-Fi Calling to authenticate on their Sprint S7 Edge phones, but I can't find it, so I am posting a new one. Like them, I tried several times to get Wi-Fi Calling to authenticate, but it wouldn't. I finally figured out the solution: turn on Wi-Fi Calling and then restart the phone. At least for me, when the phone rebooted, it had no problem authenticating the Wi-Fi Calling on the first try. It still authenticated just fine after turning the feature off and back on later as well as after restarting the phone again without leaving Wi-Fi Calling on while restarting it.

I hope this helps whoever needs this feature (I haven't needed it yet since I have good cell reception in my area and unlimited minutes).