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What "dual SIM, dual standby" means for your phone
It means your phone holds two lines at once and keeps both reachable: your home SIM for calls and texts, your KnowRoaming eSIM for data. Only one line carries data at a time, and you choose which; that choice is the one setting that matters when you travel.
More detail
Both lines show in your status bar, and a call to either rings through. Your home SIM stays on for calls and texts to your regular number, with its data roaming off so nothing slips onto your carrier's rates. Your KnowRoaming eSIM sits alongside it and carries data once you select it: Cellular Data on iPhone, Mobile data on Android. The taps are in Turn on data roaming for your plan on iPhone, Turn on data roaming for your plan on Samsung, and Turn on data roaming for your plan on Android.
KnowRoaming plans work on iPhone XS and later and on most Android flagships released since 2019. Your phone also needs to be carrier-unlocked. Check your exact model on the device compatibility page before you buy. A few older or budget models are single-SIM only, which is one reason to check before you buy.
Your plan is data only, with no phone number, calls, or SMS. Calls and texts keep using your home number.
자주 묻는 질문
Quiet destinations often lack SIM kiosks or reliable stores. An eSIM allows instant activation, monitoring, and top-ups without needing physical access.
Yes, eSIMs use the same encryption and standards as physical SIM cards.
Buying an eSIM online is easy. Simply visit KnowRoaming.com or download the KnowRoaming app (available on iOS and Android). Choose your destination and plan, complete your purchase, and receive your eSIM instantly via QR code or in-app setup.
Use a prepaid international eSIM for F1 fans so you pay local rates instead of roaming charges.
관련 기사
- Use your KnowRoaming plan for data instead of your home SIM
- Turn off data roaming on your home SIM before you fly
- What happens to my home phone number while traveling?
- Is my phone compatible with eSIM? The one-minute check
- Phone reverting to the home SIM automatically
- Phone at its eSIM limit: what to remove and what to keep
검색 기능도 훌륭하고, 문서도 꽤 유용하지만, 가끔은 그냥 사람과 직접 이야기하고 싶을 때가 있죠. 바로 그 때문에 저희가 여기 있습니다. 어떤 시간대든, 어떤 질문이든, 언제든지 도와드리겠습니다.
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