Just Set This App On The Phone, It Can Be Done Free Of Charge
There are some magical apps on Google Play Store that help you make a lifetime-free call. This will work even if your phone does not have SIM. Such apps are called Walkie-Talkie or Bluetooth Connectivity Apps. However, for the benefit of these apps, the phone needs to be Bluetooth. One such name is the Bluetooth Walkie Talkie
This phone connects two phones to a free area of 100 meters. The two people who have to talk to each other need to have this app in their phone. Activating the App Setting allows any user to make free calls to the area of 100 minutes of life time.
