The concept of voice calling over internet connection is good but it only worth when our internet connection is stable. But here in Sadar area, Mathura city of U.P., Signals of Jio fluctuates every time and that’s why making calls become a hard job as it tells that number is switched off or out of coverage.
Jio 4g voice mobile app disconnects automatically sometimes even when jio internet is working. Please improve services. I found you are worst service provider till now.