Jio4gvoice is the fastest way for callinghere are our top picks of phones that support Jio - or two, you can use the company’s Jio4GVoice app, available on Android. Jio4GVoice, which was initially launched as JioJoin, is a dialer for Reliance Jio that can be used to make rich calls from your Jio phone, or to use Jio without a 4G capable phone.
This only works with a Jio connection - you either have to have a Jio SIM in your phone, or be connected to a JioFi device. Here’s how it works.