Request for VoLTE (and VoWiFi) on my carrier

[Exec]

Hello,
I've tried to request this through live support but it never went through.
Carrier name: Digi HU
APN settings:
Address: "internet"
MCC: 216
MNC: 03
Auth type: PAP
APN type: "default" (or "default","supl")
Even though dialing "*#*#3642623344#*#*" mentioned here on the forums enables the "Enhanced 4G LTE Mode", "Wi-Fi calling", and "Carrier video calling" settings, they do not seem to work. Even in the Phone info app (dialing "*#*#4636#*#*") shows VoLTE and VoWiFi as unavailable in the IMS Registration menu.

[samuelx02]

You should request your carrier to support it, not asus

[MrHornet]

Does anyother phone like OnePlus 7 Pro, support VoWiFi / VoLTE on your network?

[Exec]

samuelx02

You should request your carrier to support it, not asus

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My carrier does not restrict it to specific phone models, they make it available to everyone.

MrHornet

Does anyother phone like OnePlus 7 Pro, support VoWiFi / VoLTE on your network?

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Yes.

[MrHornet]

Network has to support phone model. I am able to get VoWifi on Jio network but not on Airtel. Whereas, some people with phones like OnePlus has reported it working.