Voice over 5G option

matthewu1201

I just bought a brand new unlocked Pixel 9 Pro yesterday at best buy. I took the physical SIM card out of my Pixel 8 and put it in my p9p while still in the Best Buy parking lot, still using the Stock android OS. To my surprise the VONR feature showed up on my SIM card settings, I activated it and talked to my parents all the way home with zero issues (until i hit a 5G dead zone and the call dropped).
As soon as I loaded GrapheneOS on to my p9p from my P8 the VONR feature disappeared. Is there some hidden feature in the developer options, terminal command via ADB I can execute, or anything else I can do to bring back the VONR feature in GrapheneOS? Having to use VoLTE kind of sucks when you are talking to someone and trying to search the internet at the same time.
If it matters I'm using US Mobile phone service on the T-mobile network. The VoNR switch wasn't on my P8 either.

Thanks
Happy Thankgiving

Berlino

You can activate the switch for VoNR via Shizuku and PixelIMS, but you have to do this after every GOS-update. In my case I need to activate the switch for VoWiFi/WLAN-call for T-Mobile/Telekom Germany, cause of bad signal indoor reception. See more details here: https://github.com/kyujin-cho/pixel-volte-patch/blob/main/README.en.md

matthewu1201

Thanks for responding. I don't see anywhere on that Github page you linked that said this patch would allow me to turn on VoNR, it seems to only allow you to get VoLTE and VoWifi activated. Are you sure it works for VoNR as well?

Berlino

The pictures on the site are outdated. I just used the PixelIMS a few hours ago to activate VoWiFi after latest GOS-update. And I can assure you, there is also a toggle for VoNR.

DeletedUser43

Isn't this carrier dependent? I don't have this toggle, but I also know, my carrier doesn't support VoNR.

Berlino

Yes, 4G/5G is carrier dependant, but the thread opener stated that after buying bis device he was able to call via VoNR on Stock Google Android. And Deutsche Telekom doesn't want a call to be handled via WLAN in the first place, so I have to activate this toggle in settings with the help of Shizuku/PixelIMS - in the end I'm able to do wlan-calls.