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Using your eSIM
Can I keep using my regular SIM card and phone number?
Yes. That's the whole advantage of a dual-SIM eSIM setup — your everyday number stays reachable while Roamjoy quietly handles mobile data abroad.
How dual-SIM works
Your physical SIM (or primary eSIM) stays active for calls and texts on your usual number. The Roamjoy line is set as the data line, so browsing, maps, and apps run over local partner networks.
Avoiding surprise roaming charges
- Set the Roamjoy line as your default for cellular data.
- Turn OFF data roaming for your primary carrier line.
- Keep the primary line on only for the calls and texts you actually want.
Related
Supports
More fast answers on activating your prepaid travel eSIM — compatibility, delivery timing, and international data usage before you check out.
- When should I buy my eSIM, and does it activate right away?
- How do I check if my iOS device supports eSIM?
- When does my eSIM data package expire?
- How do I install my Roamjoy eSIM, and how long does setup take?
- What happens if I run out of data before my trip ends?
- How do I know if my phone is compatible with an eSIM?