I would like to start with Graphene is just an amazing piece of software. That highlights that you can effectively have a modern OS that is also very privacy focused. I can say that it does require a bit more work with setting up. The trade off for that extra work is worth it.

However I have the pixel 7 pro and I am experiencing the wifi calling bug. Yes I know that the guides and information all state it should be supported if it is with pixel stock software. I can 100% say that I have full working wifi calling with T-Mobile on the pixel stock.

That is immediately broken as soon as Graphene is installed. I called T-Mobile spoke with tech support and everything is setup correctly with wifi calling and the number the phone is activated on. I checked the phones settings and they are properly provisioned. Before I even installed Graphene I made sure I had properly setup my E911 address and everything was working. I even tried installing Google's phone app and carrier services to see if that would work, which it didn't. Not sure if there are any other trouble shooting steps.

This seems to be a bug either in Graphene or in AOSP. Either way the phone with Graphene becomes useless for me. There are a few locations I go to for work where wifi calling is the only means to having a working phone. Unfortunately I spend the most time in those places. Graphene is unusable for myself in my day to day life.

There are also a lot of reports for wifi calling not working with stock pixel software on various carriers in the US. I imagine it may be more of an android issue rather than one specific to Graphene.

The only other issue I noticed was that when selecting a custom wallpaper it is stretched and half the image isn't even viewable. I have seen a few other post about it on different models. Not a deal breaker like wifi calling but is an eye sore.

Has anyone using T-Mobile gotten wifi calling to work on the P7P? If so what steps did you take to get it to work properly?

I hope the wifi calling gets sorted out, I really want this to be my main os from here on out.