Add the travel profile over Wi-Fi
Check compatibility and the provider’s activation timing first. Follow its app instructions, or open Settings, Cellular or Mobile Data, then Add eSIM. Use the provider’s QR code or manual activation details if that is the supplied installation method.
Add the travel plan rather than transferring or replacing your home number. Label the two lines clearly. The wording can vary with the iPhone’s language, software and carrier; use the current provider instructions if the installation flow differs.
After landing, select the right line
Open Settings, Cellular or Mobile Data and select the travel eSIM under SIMs. Enable Turn On This Line. Return to Cellular Data or Mobile Data and choose that travel line as the data source.
For Yesim, enable Data Roaming inside the Yesim line’s settings. Keep home-line data roaming off. Turn off Allow Cellular Data Switching if you want to stop the phone automatically using the other line for data. These are separate controls: the home and travel lines should not be treated as one switch.
Test data, then decide about calls
Switch Wi-Fi off briefly and open a new web page. If it loads, the mobile-data path is working. Confirm the provider shows an active plan and check the remaining allowance. A signal icon alone does not prove that internet traffic is using the intended line.
Choose your calls and messages line separately. Leaving the home number enabled can still permit chargeable services under its roaming terms. If you do not need that number during the trip, turning its line off is the clearest way to stop using it. Recheck the line choices when returning home.
