As per the title, this discussion is specific to users of custom phone ROMs in the USA.
Recently, 3G networks in the USA were shut down, and if you were using a custom ROM on your phone, you lost a lot of functionality, including the ability to make and receive voice calls. SMS and MMS were also impacted.
All carriers now require VoLTE in order for voice calls to work. This creates a problem where even if your phone supports VoLTE, your custom ROM may not, and you’re left with a 4G data-only device.
Currently, only phones whose manufacturer has made their VoLTE code available to developers will be fully functional in the USA with a custom ROM. This severely restricts our choices to maybe a dozen phones. The Pixel line is fully supported, and I’ve heard OnePlus phones are also working.
If you’re in the USA and running a custom ROM on your phone, what hardware are you using?
What ROM are you using?
What works and what doesn’t?
Edit: I’m using a Pixel 3a with Lineage for MicroG 19.1, and thinking of migrating to Graphene OS.
Moto one 5g ace with LineageOS 18.1 all cell functions work fine (T-Mobile)
I’ve been using a Pixel 7a since May and put Graphene on it as soon as I opened it. With this setup I haven’t ran into any network issues so far. Figuring out how to use GSF while still ensuring good privacy was the only thing which took some time to learn. What are you using?
I edited the original post to answer your question. Pixel 3a with LOS 19.1
Wiki says US T-mobile still has 2G GSM for calls until 2024, so those shouldn’t be affected.
https://en.m.wikipedia.org/wiki/2G
https://www.t-mobile.com/support/coverage/t-mobile-network-evolution
Im not from th US, just trying to help.
Fortunately where I live they don’t plan to disable 2G, although there is no 3G here anymore.
We were lulled into a false sense of security because our phones (with custom ROMs) quietly fell back to 3G for voice calls & SMS. The display would show you were on 4G anytime you bothered to look, but when actually making a call, you were on 3G. The reality was that our phones never supported voice over LTE. They were always falling back to 3G. When the carriers began warning about the shutdown of 3G they began the process by deprecating service on those networks. The frustration with bad service led to troubleshooting, which lead to the realization that there were only a very small number of phones that would continue functioning for anything other than data after the shutdown. In short, this sucks.
