My zenfone 5z has the latest software update pushed recently which brought vowifi support for jio in india. I have a jio sim which supports vowifi on my other phone. But it just doesn't work on the 5z even when I've turned wifi calling on from the menu. The phone just doesn't switch to vowifi protocol and the call is routed through volte despite configuring the wifi calling settings correctly. Help!
Vowifi on jio not working on 5Z after latest update