@Ben-LinuxMan My provider is Yallo too and the VoLTE is working on my LineageOS installation with the Fairphone 4.

For your information, I share below screenshots of the current Android APN confugurations. Maybe that could help you to set up VoLTE on Ubuntu Touch ?

https://cloud.adorsaz.ch/s/Sm4fzxY3nr8dLkM/preview
https://cloud.adorsaz.ch/s/pGDrLHTmZfX8MpS/preview
https://cloud.adorsaz.ch/s/XX3FbaNKqrz9cDD/preview

With the Ububtu Touch noble just released, I'll try to install it again in next days and I'll write here if VoLTE works for me.

@stanwood thanks !

Nice to see Swiss users too

Hello,

I'm using Ubuntu Touch since January on my Fairphone 4.

Some days ago my phone service provider emailed me an annoucement about the near shutdown of 3G network. They provided me the information that I have to use VoLTE to be able to continue to make and receive calls.

My provider is Yallo in Switzerland and it uses the Sunrise network. Sunrise will shutdown the 3G network next June.

My question is: should the VoLTE option work with Fairphone 4 ?

The device information here say no, but it seems some recent developments happend on VoLTE.

I see a switch on Ubuntu Touch setting to enable the VoLTE but it seems disabled. Is there some thing to do to enable it like using stock Fairphone OS ?

Edit: I'm runnning the Ubuntu Touch stable channel (focal OTA 8). I've let default phone provider access point configuration (only "internet" is enabled, no MMS neither LTE). My phone is connected with LTE already.

@AppLee another way for application developpers is by using the libsecret protocol to ask a user session service to store sensitive data. Gnome-keyring is such a service which creates by default a key store locked by the current user password.

IIIRC the KDE/plasma service is named kwallet.

Although, IIRC Ubuntu Touch lets user use phone without password/pin code. Maybe this is the reason such service is not provided to app developpers ?