I had a great experience with airtel, but now I am facing so many issues.
I am using my airtel sim nearly for 7 yeras, before the JIO came it was really a nice experience, the internet speed and call quality, everything was fine. But when the 4G war starts, the internet speed becomes less, especially evening time. In the evening sometimes the internet is not enough to send a WhatsApp message. 4-5 days before, call was after one minute from dialling the number.
Now airtel launched a VoLTE testing program which is not upto the expectation.