My S9+ unblocked from Best Buy on Sprint has WiFi calling It is a hard to find setting. I got to it by going to the Phone button and hitting the 3dots on the top right of the screen. Press the Settings tab. The WiFi calling button is the last one on that page just above About Phone.
yesterday, I spent more than an hour with the ATT tech rep. he could not even eprovision my line to have WIFI calling because it was matched (IMEI) to the samsung S9+. meaning, my unlocked S(+ will not support ATT wifi calling. this same phone supported T-Mobile wifi calling all the time. not supporting wifi calling means we cannot take advantage with the new android messages and send regular messages on wifi
It is controlled by the carrier and metro pcs does not allow this feature I switched to Xfinity mobile and they finally enabled it on their galaxy phones but it is up to the carrier to enable this feature one of the reasons I switched to Xfinity
I have been struggling with this and thought people might benefit from my experience.
I got an "unlocked" S10 (meaning directly from Samsung.com and non branded) and I was with At&t carrier.
I tried and wasted so much time talking to different At&t and Samsung people and there is simply no solution to activate the WiFi calling.
I went to T-mobile and the minute they put their sim card in WiFi calling was up and running.
It is sad that you have to switch carriers for this but if you have no service at work like me, WiFi calling is essential.
Hope this helps.
All Samsung phones, regardless of carrier, ARE able to utilize all features regardless of carrier, they all have the same features, However, the ability to turn them on or activate those features are dependent on some configurations that Sadly, general users do not know, and are potentially hidden from.
There are some public write ups on how to turn on all of these features, but it takes some work.
We configure these things for customers all the time. It certainly is sad that the carriers play these games and limit their customers, and use them as ploys to get your business.
Hope this info is promising for everyone who reads this reply.
Google is your friend on this venture to enable all your available options. Good Luck.
I found out, to enable wi-fi on my Note 9, you tap the Phone app not settings app. Then once the app opens you will see the 3 vertical dots. Tap those 3 vertical dots and then scroll down to Wi-Fi slider. And then I just turn the slider to the on position. I hope this works for you and others.