Instruction or help installing e/OS on Samsung S10 or other?

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Galaxy S10e, VoLTE support

Whether any phone has the capability to use VoLTE depends on whether the manufacturer has obtained certification for it with a specific mobile provider or providers. In other words, the device may have VoLTE with a certain carrier, but not with another. Examples: Sony XZ1 Compact (released 2017) is certified for VoLTE with T-mobile USA, but not with AT&T or Verizon. Sony XZ1 (non-compact version, also released 2017) is not certified for VoLTE with any U.S. mobile provider. So I think you’ll …