Okay. one example would be using an app (e.g, RedPhone) that can make phone calls over data (WiFi). How would people call me if I don't have a phone number? Or would this not work even with a phone number. This is what I'm trying to understand.
There are a lot of apps that allow texting and phone calls over WiFi. But how does user get a phone number without a SIM? Can you buy a SIM to get a phone number but then never activate it with the carrier?
There are a lot of apps that allow texting and phone calls over WiFi. But how does user get a phone number without a SIM? Can you buy a SIM to get a phone number but then never activate it with the carrier?