I thought this would be an easy thing to do on a smartphone in 2026 as it has been done on computers for years. The software is available in Linux and linphone was available for the Ubuntu Touch in the Open Store at one time according to Brave AI but not now. Jami is another common way to do this but again that is not available for the UT.
How can we make phone calls using SIP or VOIP on a BraX3 running UT?
If you are so passionate about that compile your favourite apps as snaps and create a repository so that other users can use them easily.
Being accepted in the official store would be more complicated but you can talk with them.
Jami, jami-qt (aarch64) | Packages | Arch Linux ARM
You can probably run Linphone if you extract the binaries from those aarch64 packages, https://pkgs.org/search/?q=linphone
Perhaps I could make a snap. No guarantees it would work for everybody-I’m not a programmer and just an advanced Linux user who has been using all kinds of Linux distros for decades from Slackware to XUbuntu. I was really into the Raspberry Pi and learned a lot about CLI entry which is coming in handy now with Ubuntu Touch.
What I see as lacking in this smartphone is the phone part. I’m not much of a phone person anyway and I bought it for the computer side. But people have been using UT for years now and I was wondering how phone calls are made anymore since the SIM cards don’t seem to work in the USA.
Test whether the binaries can run or fail due to dependencies or other reasons. The snap will be able to accumulate all the dependencies but it may not be so obvious how it is done.
If you are able to compile a working snap it will also work for any user that meets the system dependencies to install a snap and there isn’t some conflict like a very old Ubuntu Touch version.
I have used Ubuntu Touch as a phone on Pinephone where the modem is on a USB port.
In this case it uses the vendor binaries and the HAL, it has been implemented on other phones, I don’t know what could be the difficulty with Brax3.