Jio4GVoice for iOS: Reliance Jio recently launched the Jio4GVoice app as JioJoin. It is dialler app, and we can use it for making the calls from our JioSIM present phone. On Android, we can make the calls using the JioFi 4G hotspot, and we can use the Jio without the need of VoLTE capable phone, can send messages. Now, the iOS app got the new version 1.6 update. It contains the video calling support mainly for the VoLTE phones and can receive the incoming call notifications.