If you have a smartphone which uses 4G or WiFi, you can make free voice and video calls if the person you’re contacting also has a smartphone which can access the internet. You can talk to your family and friends using just audio, like you would for a normal phone call, or even see them face-to-face using video. WhatsApp and Facebook Messenger are two of the best-known apps for making free video calls.
If you have an Android phone (for example, Samsung, Sony, Google, or Huawei) you can download these apps using Google Play. If you’re using an iPhone, you can use the App Store.
It’s worth bearing in mind that these calls will be free if you’re using WiFi, but they will use up your data if you’re using 4G, which could affect the cost of your bill.