M1 wifi calling

[Inix]

I've also observed via packet capture that the Wifi Calling uses IPSec to connect to telco's Wifi-Calling-Server.
I've tried a few things:
1) While in at home in SG, Wifi Calling still work when I turn on airplane mode while leaving the wifi on.
2) I've tried doing the same overseas but it didn't work, which led me to believe that the Telco's IPSec server is rejecting IP addresses originating from overseas.
3) I then tried to enable VPN on my phone to route all traffic back to my SG home, in the hopes that it'll make it seem that I'm connecting from SG, but the Wifi-Calling-IPSec traffic went directly to the wifi router's network rather than my VPN tunnel.

One last thing I've yet to try, bring my own wifi router overseas and create a site-to-site VPN from overseas to my SG home, set the router to route all traffic to the VPN tunnel back to SG, then use the wifi on that router.
Haiz.. so much effort just to make cheap roaming calls.

Hello,

I reckon thereason why what you're trying to do failed is because an Android Hotspot will not route traffic over VPN unless the Phone is rooted with a special VPN App.

Are you able to share the wireshare output on the DNS that M1 was querying for WiFi Calling? I'm trying to build a custom route to see if my WiFi calling will actually work.

 

[bencheongcm]

Hello,

I reckon thereason why what you're trying to do failed is because an Android Hotspot will not route traffic over VPN unless the Phone is rooted with a special VPN App.

Are you able to share the wireshare output on the DNS that M1 was querying for WiFi Calling? I'm trying to build a custom route to see if my WiFi calling will actually work.

Interested to know this as well.

 

[sansanjikikut]

Wifi calling should be turned off unless you can guarantee that you are connected to a stabe wifi network, unless you one bar of signal also don't have then no choice. whatsapp call can be over mobile data or wifi.

 

[kinggerard]

At Home
I can see the wifi calling on notification bar (M1 signal is strong)

At work with mesh Wifi (mezzanine flr) (signal is weak , on and off cannot call in and out)
No wifi calling on notification bar.

What can I do?

anyone please help .

 

[Charlie_Zhan]

At Home
I can see the wifi calling on notification bar (M1 signal is strong)
At work with mesh Wifi (mezzanine flr) (signal is weak , on and off cannot call in and out)
No wifi calling on notification bar.
What can I do?
anyone please help .

turn off wifi calling


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[edmwperson]

Bundled mins will still be deducted. It’s just (normal) cellular calls made via Wi-Fi instead of the usual cellular tower or reception.

via  iPhone X HardwareZone Forums app

huh? iphone has this wifi calling option, default off

Don’t get the point when u switch to wifi for better quality voice calls when Watsapp voice call also does the same thing moreover Watsapp is free

umm.... true, via whatsapp good enough