Can all androids video chat with each other? I have the note 9 and my dad has the s7 edge, and it doesn't seem to work? I'm taking about The android video chat that appears when you call someone, not an external chat app?
Best answer by tmo_chris
So to use T-Mobile Video calling, both devices would need to be a T-Mobile video calling device and have VoLTE enabled. Most phones that are from other carriers may not support T-Mobile VoLTE as they would need to also support WiFi calling and E911 and WiFi calling is not supported on non T-Mobile phones. Your best bet here is going to be using a 3rd party app.