1. Windows Central Question's Avatar
    When you bring an unlocked Lumia phone to T-Mobile, you cannot use T-Mobile Wi-Fi Calling. (T-Mobile branded phones come with unique software required for T-Mobile Wi-Fi Calling.) Many users believe that Windows 10 Phone would solve this problem, because Windows 10 Phone contains a Wi-Fi Calling app.
    The Lumia 650 comes with Windows 10 Phone preinstalled.
    So the question is, if you bring an unlocked Lumia 650 (because at this writing there is no T-Mobile version of the 650) to T-Mobile, will Wi-Fi Calling work?
    (Related question: If it does work, is there any special set-up required on T-Mobile to "activate" it?)
    Thanks!
    04-08-2016 08:58 PM
  2. libra89's Avatar
    Nope, it wouldn't work. There are only a few unlocked phones that support WiFi calling, but none of those are Windows Phone/Mobile.
    xandros9 likes this.
    04-08-2016 10:09 PM
  3. RickInFla's Avatar
    So, this means that T-Mobile USA does not recognize/support the Native Wi-Fi Calling that is part of Windows 10 Mobile?
    04-09-2016 09:46 PM
  4. libra89's Avatar
    So, this means that T-Mobile USA does not recognize/support the Native Wi-Fi Calling that is part of Windows 10 Mobile?
    Correct. In order for that to actually work, the carrier has to approve it.

    The only exceptions are t-mobile branded windows 10 mobile phones such as the fierce xl by alcatel.
    xandros9 likes this.
    04-09-2016 10:04 PM

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