Will ATT iphone work with T-mobile's Wifi calling?

Discussion in 'iPhone' started by ACG12, Jan 20, 2016.

  1. ACG12 macrumors 6502

    Joined:
    Jun 9, 2015
    #1
    Seriously considering dumping ATT and switching over to T-mobile, but wanted to confirm this feature will work. Can anyone who's switched confirm that wifi calling will work if I unlock my ATT phone and switch it over?
     
  2. Closingracer macrumors 68000

    Joined:
    Jul 13, 2010
    #2
    Yes it's the same phone model. Apple sells two models in the United States.... One for Verizon , AT&T and T-mobile and one for sprint. The sprint one can work on any network given it is unlocked.
     
  3. Applejuiced macrumors Westmere

    Applejuiced

    Joined:
    Apr 16, 2008
    Location:
    At the iPhone hacks section.
    #3
    Yes, as long as your AT&T iphone is unlocked.
    Wifi calling and every Tmobile feature will work fine.
     
  4. patt2k macrumors regular

    Joined:
    Dec 31, 2012
    #4
    I am using Verizon model on T-mobile. Works fine. Verizon models come sim unlocked out of the box.
     
  5. imlynxy macrumors 65816

    Joined:
    Mar 8, 2012
    #5
    When you swap your sim cards, t-mo sends a carrier update on your phone, just accept it and you will have all the features there. There is a problem sometimes with non-att iphones to obtain volte from Att, but this is another story.
     
  6. rpetunderclass macrumors regular

    Joined:
    Dec 9, 2014
    #6

    Can confirm, I have tried a Verizon, AT&T, & T-Mobile sim and got let/4g/3g volte/wifi calling with no problems.
     

Share This Page