Hey Folks,
i've got a question about VoIP. I use a Pixel 7a with GrapheneOS. After long time without using a simcard at all I know do have one insdie my Pixel. At first I didnt understand, why i still get sms although airplaine mode is activated. Then I learned about the VoIP feature but now there are also more questions I can't find any awnser about in the web. In the following case, airplaine mode is always activated, but wifi still enabled.
Does VoIP aka VoWlan use the VPN tunnel?
If yes, does that means that my simcard provider "thinks" i am at the place where the vpn exit reley is? And does that means, that if i have a european simcard but use a vpn server outside of Europe, that i have to pay the fee for international calls?
I really hope you can give me some awnsers, that would be wonderful. Thank you!
p.s. If anyone of the GrapheneOS developers sees that: A thousand thanks to your Work ❤️