I am using lenovo a7000. This phone does not have VoLTE feature. That's why when I installed my jio sim in my phone I was unable to call or unable to use the internet and for this reason I was unable to tele-verify my jio number. Here comes jio 4g voice app. One of my friend suggested me to install this app. After installing this app when I turned on my data it's connected. After that I was able to call and tele-verified my jio number.
So here is the benefits of jio 4g voice app
If your phone does not have VoLTE, this app can help you to make calls .
This app has a option of video calling. So if your freind is using jio sim then u can directly video call him.
You can swith between audio call to video call.
This app has all new dialer and sms app and u can also change the theme.
So all over thing is that jio 4g voice app is awesome app for all the phones. Thanx