video calling not working

zoomob

    My V10 shows the video calling on the dialer and my wife has the S7 which also has it but when we do the video call, it says video call unavailable.

     

    We live in Iowa where the T-mobile lines are run by I-wireless. Is this why it is not working? We do have LTE here and we tried on LTE and on Wifi. I even tried with VoLTE turned on and off. thanks.

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