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Please add VoWifi WiFi calling feature for India [Threads Merged]

Rising Star II
As Jio and Airtel now have wifi calling in india and soon Vodafone will also implement Wifi calling its time that Asus will add this feature in future updates.

Star II


Right code is *#*#3642623344#*# 🙂

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You are a life saver. I am able to enable wifi calling for Jio network in India. I have been struggling with very poor reception in my home and with this the call is super clear. The right code has an asterix at the end of the code which you posted.

Rising Star I
Here is corrected Typos from earlier posts
Correct Code is
Rule of such code: It starts with * and whatever your pre-text before numbers should mirror post-number code. After entering code, screen should go back to dialer mode, as if nothing happened. You don't have to press dial button.
WiFi calling has been enabled for my both Sims, Jio and Airtel.
I still need to test WiFi calling from home. Although, 6z receive better signal, JIO and Airtel both give $hIt coverage at my place on rotational basis. ? . I hope this works for me.
It seems that trick is working and I got the VoWiFi icon for Jio. This trick only work till phone restarts. Once phone is restarted, you will loose the VoWifi.
However after the update it's gone.
As phone restarted. You have to enter the code again.

Star III
Until when we have to wait for wifi calling support in Asus Zenfone 6 for Airtel and Jio Sim Cards in India.
Any estimated time?

Star II
This trick is working for Jio but not for Airtel. I was able to make successful VoWIFI calls on Jio. But again, it is not very stable, the VoWIFI icon just disappears for a while and again comes back.