[
    {
        "role": "user",
        "content": "I%27m%20using%20an%20iphone%2C%20and%20i%20want%20to%20use%20a%20different%20esim%20I%20have%20purchased%2C%20that%20is%20different%20from%20my%20main%20network.%20How%20do%20I%20switch%20from%20one%20to%20the%20other%3F"
    },
    {
        "role": "assistant",
        "content": "Here\u2019s how to switch between eSIMs (or between your physical SIM and an eSIM) on an iPhone. The exact steps can depend on your iPhone model and what version of iOS it\u2019s running, but the process is generally similar.\n\n---\n\n### \ud83d\udcf1 1. Make sure Dual SIM / Multiple eSIMs are set up\n\nFirst, you need to have more than one line installed (either via physical SIM + eSIM, or two eSIMs if your model supports it).\n\n- Go to **Settings \u2192 Cellular** (sometimes it\u2019s called **Mobile Data** or **Mobile Service**) to see all your lines listed under \u201cSIMs\u201d or \u201cCellular Plans.\u201d ([support.apple.com](https://support.apple.com/en-asia/guide/iphone/iph9c5776d3c/ios?utm_source=openai))  \n- Each line should have its own label (like \u201cPersonal,\u201d \u201cWork,\u201d or \u201cTravel\u201d) and you\u2019ll see options under each to enable/disable it. ([alosim.com](https://alosim.com/activate-esim-on-your-iphone/?utm_source=openai))\n\n---\n\n### \ud83d\udd00 2. Switching which line you use for calls and texts\n\nTo switch your **default voice line** (which line will be used for most outgoing calls & SMS):\n\n- Open **Settings \u2192 Cellular**  \n- Tap **Default Voice Line**  \n- Pick the line you want to use as your default. ([ionhowto.com](https://www.ionhowto.com/choose-calls-line-on-iphone-dual-esim/?utm_source=openai))\n\nIf you want to use the other line for just one call:\n\n1. Go to the **Phone app \u2192 Keypad**.  \n2. At the top, tap the current voice line name (it might say \u201cPrimary\u201d or the label you chose).  \n3. Select the other line before you dial. This change will apply only to that call. ([ionhowto.com](https://www.ionhowto.com/choose-calls-line-on-iphone-dual-esim/?utm_source=openai))\n\n---\n\n### \ud83d\udce1 3. Choosing which line for Cellular Data\n\nData usage can be set to any one of your active lines:\n\n- Go to **Settings \u2192 Cellular (or Mobile Data)**  \n- Tap **Cellular Data** (or **Default Data Line**)  \n- Select which line you want to use for mobile data. ([esim.express](https://esim.express/blog/how-to-switch-between-esims/?utm_source=openai))\n\nYou can also turn on or off \u201cAllow Cellular Data Switching\u201d\u2014this lets your phone use data from the other line automatically if your current one has poor signal. ([ionhowto.com](https://www.ionhowto.com/choose-calls-line-on-iphone-dual-esim/?utm_source=openai))\n\n---\n\n### \ud83d\udd0c 4. Turning a line on or off completely\n\nIf you want to temporarily disable an eSIM or line (so it's not used for anything\u2014no calls, texts, or data):\n\n- In **Settings \u2192 Cellular**  \n- Tap the line you want to disable  \n- Toggle **\u201cTurn On This Line\u201d** to **OFF**.  \nTo re-enable, toggle it back ON. ([alosim.com](https://alosim.com/activate-esim-on-your-iphone/?utm_source=openai))\n\n---\n\n### \u26a0\ufe0f 5. Things to watch out for\n\n- Not all iPhones allow two active eSIMs at the same time; on many models, one line must be a physical SIM, or one of the eSIMs must stay inactive. ([reddit.com](https://www.reddit.com/r/Airalo/comments/12gqf4y?utm_source=openai))  \n- Things like iMessage and FaceTime may need you to manually set which number/email address is used. Sometimes, when changing SIM lines, these settings don\u2019t automatically switch. ([support.alosim.com](https://support.alosim.com/hc/en-us/articles/24051695955597-What-are-the-correct-iPhone-eSIM-settings?utm_source=openai))  \n- Carriers might have specific rules or constraints; make sure your phone is unlocked if you plan to use different carriers. ([support.apple.com](https://support.apple.com/en-asia/guide/iphone/iph9c5776d3c/ios?utm_source=openai))\n\n---\n\nIf you tell me your iPhone model (e.g. \u201ciPhone 13 Pro\u201d) and the version of iOS you have (go to **Settings \u2192 General \u2192 About \u2192 Software Version**), I can give you step-by-step instructions tailored to your device. Want me to do that?"
    }
]