Hi
I am sharing my views regarding the jio4gvoice app.This is very easy to use.When I purchased my new 4g phone, I bought jio sim then I found that without this app you cannot make calls.
so I installed this jio4gvoice app.
Concept: The concept behind it to make calls, messeges, video calls, conference calls.
Layout, design, features and functions: It is green in colour.
In first slide, contact list is present.
In second slide, messege list is present.
In third slide, incoming/outgoing calls are present.
Usefulness: For using jio sim, you have to install this sim.I am using LTE phone, so I keep my data always on.So there is direct link between Jio4gvoice app and network.If there is proper network in your phone, then only it will work.