@evan@cosociantries.l.ca
I'm running Ubuntu Touch on a FairPhone 4 and for some reason I can only access 2G networks. 3G, 4G, and 5G are out of my reach for some reason.
I can receive SMS text messages, but for some reason MMS messages have trouble downloading although I have 2G data access, which I've tested through Firefox.
Configuration parameters between countries for these features are still specific to carriers and countries, and even with the right configuration, there's something still missing from the open / free software implementation, it seems.
That said, I'm super thrilled voice phone calls and SMS and 2G data works!
I've noticed that iPhones may default to only sending MMS and never send SMS, so anyone who uses an iPhone may be incompatible with SMS for this reason. Most iPhone users cannot send SMS messages, which makes them unable to send messages to my phone. I'm not an expert, so I can't confidently verify any of this, and this is purely just my anecdotal experience.