If you happen to use a phone that supports dual-SIM cards or an eSIM compatible device, you have the option to allocate your cellular data under FlexiRoam SIM card/ eSIM and reserve your home SIM for calls and SMS.

This means that you can enjoy the benefits of FlexiRoam's data services while still being able to use your home SIM for traditional phone functions. 

Can I still receive phone calls or SMS from my primary number?