Jio WiFi calling feature has been rolled out for 150 phonesReliance Jio has launched its WiFi calling service that allows its users to receive voice and video calls over a WiFi connection. This feature from Jio comes right after Airtel rolled out WiFi calling for its users. The big difference between the Airtel's WiFi calling feature and Jio's WiFi calling feature, however, lies in the amount of supported devices. Airtel announced that its WiFi calling feature would be functional only on phones that have Airtel broadband, whereas Jio WiFi calling feature is supported by around 150 handsets and through all WiFi calling networks.
The common point between Airtel and Jio VoWiFi services is that both these telecom operators are offering this feature free of cost for domestic calls. WiFi calling is used when the phone is connected over a WiFi network even if the subscriber uses a regular phone app. In case your phone is not connected over a WiFi network, calls will be made using a regular GSM or VoLTE network.