Kyujin Cho

@chuckman Ah, sorry. Forgot to sign the APK. [here](https://github.com/kyujin-cho/pixel-volte-patch/suites/13686274473/artifacts/756455398) is the updated link.

@chuckman Glad to hear you've made some progress. I've read the source code of [IkeConfigPayload.java](https://cs.android.com/android/platform/superproject/+/master:packages/modules/IPsec/src/java/com/android/internal/net/ipsec/ike/message/IkeConfigPayload.java;l=161?q=INTERNAL_IP4_NETMASK) which originates the `InvalidSyntaxException` and it shows both `INTERNAL_IP4_NETMASK` and `INTERNLA_IP4_ADDRESS` are set by remote...

Hmm, interesting. Looks like lots of WFC-related configs are actually disabled on the S10+, whilst being turned on the Pixel...

@chuckman These are the values which makes difference between S10+ and your Pixel. Can you try updating configuration to the ones highlighted on the right side and try again?

@chuckman Aight. Then now we have two hypotheses left: we still have to tune some other parameters or your carrier is limiting establishing tunnel to ePDG entity only for whitelisted...