vowifi stopped working on my iphone

if you are using airtel then vowifi will not work untill airtel detects specific signal range. if less than that then only it gets activated
 
then what is the point of vowifi, if needs a signal to work?

and as far as I can remember, It used to work on my phone even when there was 0 mobile network.

edit - right now I am on 3rd floor where there are 3 mobile network bars and vowifi is still not working
 
lets say if there is 1 bar of signal then you will get vowifi.. it depends if signal is less than -110 db then it gets activated but i don't know the exact number.

hack:

you can manually select different network which your phone will not latch on and you will get vowifi.
 
damn u are running latest update and still having wifi calling issues

try contacting Apple support at this point
 
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