Trying to understand WiFi calling support

[tribexx]

All,

I have an unlocked 950XL on T-Mobile. I don't have the WiFi calling that was available on my TMO 640. The talk was that you had to have a TMO branded phone for WiFi calling to work...ok.

I took my son's iphone 5c and my wife's iphone 6 from VZW to TMO. They have WiFi calling on TMO.. "It's part of Apple's software." says the sales rep.

So is it only TMO phones and Apple phones that have WiFi on TMO?

 

[tgp]

So is it only TMO phones and Apple phones that have WiFi on TMO?

Unlocked Androids have WiFi calling as well on T-Mobile. It is more accurate to say that unlocked Windows Phones do not have it.

 

[tribexx]

OK,

So it's more of an OS issue....

 

[blazewon22]

Yes It's a Windows Phone Limitation. My family's iPhone's and Android Phones all have it on AT&T.