Some very helpful AT&T service techs have gotten all the ducks in a row to transfer my AT&T account from physical SIM to eSIM. This will allow me to use cheaper local SIMs when I travel (if I want to). I'm on the road at the moment and will be pulling the trigger on that after my current travels are complete. But this raises a question: with only 16 or so countries "supporting" eSIM at this time, what happens when I travel to a country that doesn't "support" eSIM? I guess I'm asking what "support" of eSIM really means. It's one thing for a country to allow sale and provisioning of eSIM-equipped phones within its borders, but will a phone that's duly provisioned in a supporting country still work when it is carried into a non-supporting country?