My mobile is not a volte, its a lte phone. So if I should make a call from my jio I should use this application. There is no contact search option in this application. If we want to call then we must require the data to be on and even if data is on sometimes that doesn’t connect. The features mentioned in the application are not truth. The voice quality is too low compared to normal calling. Even texting from this also a difficult task. I am using it just to get the benifits of free jio or else its a worst application I had ever seen.