Two-factor authorization with foreign SIM card
When I arrive abroad, I switch to a European SIM card that I keep for traveling. I have a new iPhone that Apple will want to authenticate. But Apple will send the code to my US number, in other words to the number linked to the SIM card I’ve taken out. How then do I authorize this device? Do I have to reinsert my US SIM card, authenticate the phone and then reinstall my European SIM card? And how do I get Apple to include the European number as a trusted number? Thanks.