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 ...

What is WiFi Calling and How It Works: Sometimes, due to weak mobile network signals, call drops or poor call quality can occur. In such situations, WiFi Calling proves to be a very useful feature.

Sachin Bahal is a freelance tech writer. He has a bachelor's in journalism from Toronto Metropolitan University and studied journalism and photography at Durham College. A tech geek since childhood, ...

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 ...