Google Hangouts is a wonderful app that can save you a lot of money and allow you to talk to others even without a SIM card. We have already explained how to make free Wi-Fi calls using Google ...

You don't need a SIM card and cellular service to use most features of today's iPhones and Android phones. Most apps and services run just fine as long as you have access to WiFi, and you can even set ...

Imagine that you have a Wi-Fi tablet that doesn’t support SIM cards, but you still want to make phone calls. Buying a new device just to say ‘hi’ to your grandmother doesn’t really seem like an ...