How to set up Dual SIM on iPhone?
You can set up Dual SIM on iPhone to use two lines for work, travel, or separating personal and business use. Once configured, it can make calling, messaging, and data choices more flexible.
Steps
- Add the second line using the supported SIM or eSIM method for your model.
- Name the lines clearly so they are easy to identify.
- Choose which line handles default calls, messages, or data.
- Test both lines after setup.
Why Dual SIM is useful
- Separate work and personal use
- Add a travel line without removing your main line
- Choose the better line for data or calls
Pro Tip
- Rename the two lines with clear labels like Personal and Travel right away, because confusion later usually comes from not remembering which line is active for data or calls.
- Review your default data line before a trip.
- Test both incoming and outgoing behavior after setup.
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