Jio VoWiFi issue - It's always DNS!

tl;dr If Jio VoWiFi isn’t working for you, set a different DNS resolver on the phone. While I am a big proponent of running your own resolver in the network, ( ) , you could test by using open resolvers. The issue doesn’t seem to be impacting everyone and only a subset of users. To begin with, there are multiple things broken in the authoritative name servers and ns2.