Force IPV4 APN config iPhone

Hello experts,
Does anyone know how to force iPhone to only use IPV4 in APN configuration?

iOS and iPadOS

It is not possible to disable IPv6 on Apple’s mobile platforms at the system-level, although the OpenVPN Connect app can route connections through IPv4 only. Just go to settings → and select IPv6 → IPV4-only tunnel.

IPv4 only tunnel option

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Maybe write custom .mobileconfig file to have only IPv4 APN configuration but that doesn’t override system default. I tried example enable IPv6 APN so I have to use another APN name (valid one) to get IPv6 working over mobile network.

But why disable IPv6? If have any issue should provider fix it.

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