Hello.
I switched a while ago from DivestOS to GrapheneOS. So far I am very happy with the switch and I really appreciate the work being done here. I am still learning how to use the OS to the max with profiles, etc, but I have an annoying problem that I cannot solve. In the past I asked from some support in the Telegram channel which seemed to fix the issue, but not working any more.
I have a Pixel 7a running 2025100900. I cannot make or receive calls most of the times. I have 2 SIM, the first one is a Spanish card I use it for internet without any problems, the second one is a Belgian (where I am at the moment) which is only for receiving calls mainly. When I try to receive calls (Spanish) it seems I am unavailable and will receive an SMS saying so, when I try to make calls, it will usually say "network busy" or just "call ended" after waiting some time.
I have tried:
- Playing with the settings, switching off 4G calling
- Switching network type to 4G instead of the recommended 5G
- Resetting the network settings (as I was recommened in the past and which seemd to work)
I believe that sometimes I could make calls by adding the international prefix even to call locally, or by switching the +34 for a 0034, but I cannot prove it had an impact.
I don't call often, but it is very limiting not being able to make calls when needed. What can be the issue?
Thanks.