Can I keep my normal SIM active?
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On most modern phones, you can keep your regular physical SIM (or primary eSIM) active while using MondoMate eSIM for mobile data. This is one of the big advantages of eSIM.
Important: disable roaming on your primary SIM
When abroad, make sure data roaming on your primary SIM is turned off (or that roaming is enabled only for your MondoMate eSIM). Otherwise, your regular operator may charge expensive roaming fees for background data use.
Always check your primary SIM's roaming settings when using MondoMate eSIM for data abroad. Accidental roaming on your regular number can result in unexpected charges from your home operator.
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