Hubby eSIM provides data-only connectivity. This means you can use apps like WhatsApp, FaceTime and similar for calls and messages, but calls and SMS services are not included.
If needed, you can set your Personal SIM for calls and SMS, but we advise caution; if you have 'Automatically switch Data Roaming' ON, it may automatically switch to using mobile data from your personal SIM, which may subject to roaming charges.