How do I turn off Wifi calling and messaging???

    I've looked at issues other users have had with this phone and mine are similar.  However - there weren't any solutions.


    I believe the root cause is the Wifi calling.   Is there a way to turn it off so I use the TMobile network only?   I do not receive ANY calls when it's in Wifi mode.   On some occasions, I can dial out - but those calls have all disconnected abruptly during about 5 minutes into the call.   The other calls - it says it's dialing, but just hangs.  You can NOT disconnect the call unless you turn off the phone. 

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