FlyerTalk Forums - View Single Post - Free text messaging on all Delta flights
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Old Sep 29, 2017 | 5:35 am
  #33  
kdonnel
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Originally Posted by mattp1987
I don't have T Mobile, but I think all their text messaging is done over Wifi as well which is different from traditional SMS (short message service) texting and should work on this system.
All the major carriers, AT&T, Verizon, Sorint, and T-Mobile, support WiFi calling. WiFi calling registers your phone to your carriers network over the internet and sends all cellular communications over the internet instead of to a tower.

When WiFi calling is not turned on T-Mobile works just like AT&T, Verizon, and Sprint when WiFi calling is not turned on.

There is nothing special about how T-Mobile works.
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