Presumably, linked to what the sibling said, any actual business probably ought to go over high-security data connections anyways if it's going to go over any m

Presumably, linked to what the sibling said, any actual business probably ought to go over high-security data connections anyways if it's going to go over any mobile network at all. No telling who's tapping into telecom systems in third-world countries, and normal phone calls probably go in the clear no matter what the registered phone number or roaming agreement is for the device.