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iMessage and FaceTime over your KnowRoaming data
Nothing to set. iMessage and FaceTime run over whatever data your phone has, tied to your Apple ID and your regular number. Once the KnowRoaming line is selected for Cellular Data, they work as they did at home. Your plan has no number of its own, and they don't need one from it.
More detail
Green bubbles instead of blue, or FaceTime won't connect? Check three things. First, that data works at all. If nothing else loads either, it isn't an iMessage problem; see eSIM not working: no data after landing. Second, Settings > Messages > Send & Receive. It should list your Apple ID and your home number, both checked. If your home line is switched off entirely, iMessage may need to re-verify the number. Turn the line on, leave its data roaming off, wait a minute, and it comes back. Third, toggle iMessage off and on in Settings > Messages if it's still reconnecting.
Photos and videos that won't send are usually Low Data Mode holding back large attachments. Turn it off for the KnowRoaming line: Settings > Cellular > your KnowRoaming eSIM > Low Data Mode.
Your plan is data only, with no phone number, calls, or SMS. Calls and texts keep using your home number.
Foire aux questions
How to use an eSIM while backpacking is surprisingly simple. First, ensure your phone is unlocked and eSIM-compatible. Then, download the provider's app (like KnowRoaming's). You can choose your plan and add the eSIM digitally through the app, often by scanning a QR code. Once added, just enable data roaming for your eSIM, and you're ready to go, no physical cards or airport kiosks needed.
No swapping SIM cards, no kiosk queues at the airport, set it up once and it's ready every time after.
With KnowRoaming, setup takes less than five minutes. Using the automatic setup in the KnowRoaming app, you can download and add your eSIM in just a few taps. This makes it one of the fastest and most reliable ways to get connected before your trip.
Simply add the eSIM profile on your unlocked, eSIM-compatible device before you travel. Once you arrive in a supported country, turn on your eSIM, and you'll be connected!
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