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  I think I read that earlier models of Zenfone 8 did not support VoLTE but was later updated with a firmware update. I have just purchased a Zenfone 8 and activated it on T-Mobile, who said they are no longer activating phones without VoLTE support. I had no problems and I see the VoLTE message on my status bar. You may…

  in Zenfone 8 appears on AT&T approved list but does not support voice calls on AT&T Comment by photo937 May 11