embedded Universal Integrated Circuit Card
何ですか eUICC?
The hardware chip inside your phone that holds eSIM profiles. The "embedded" version of the traditional UICC found in physical SIM cards.
どうやって eUICC travel.toの問題?
Every eSIM-capable phone has an eUICC chip. It can store multiple eSIM profiles (typically up to 8 on modern iPhones) with one or two active at a time. travel.to's QR code installs a profile onto your phone's eUICC.