Does Fairphone 4 supports VoLTE ?
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@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/previewWith 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.
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@adorsaz
VoLTE is for Voice over LTE.
Sadly it has nothing to do with data or SMS and MMS setup.
4G (and 5G I believe) data works perfectly under Ubuntu Touch, same goes for SMS and MMS. -
Sorry for the idle question, but I have seen on this forum a post complaining that Volte was working yes, but there was no feedback for the call routing, in a word, the user was launching the call, waiting in a void, then suddently hearing the voice of the called person. It was not on a Fairphone, it was with a Volla 23 IIRC, but is this a generic problem with current Volte and Ubuntu Touch ?
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I just made a call, I got the standard ringing until the other side picked up the phone
Though again, I'm not sure if the lack of a "3g" icon is proof enough that volte is actually workingsee follow up answer
Cellular Settings -> Carrier & APN -> 4G calling (VoLTE) is available and enabled -
said in Does Fairphone 4 supports VoLTE ?:
I just made a call, I got the standard ringing until the other side picked up the phone
Though again, I'm not sure if the lack of a "3g" icon is proof enough that volte is actually workingCellular Settings -> Carrier & APN -> 4G calling (VoLTE) is available and enabled
After a bit more testing it looks like that was a false positive
Yes, all the settings are there, but following this thread and calling gbus it seems that volte is not actually supported:$ cat /etc/ofono/binder.d/qti.conf [Settings] ExpectSlots = slot1 extPlugin = qti radioInterface = 1.4 [slot1] path = /ril_0 slot = 0$ gdbus call --system --dest org.ofono --object-path /ril_0 --method org.ofono.IpMultimediaSystem.GetProperties ({'Registered': <false>, 'Registration': <'auto'>, 'VoiceCapable': <false>, 'SmsCapable': <false>},) -
Here are steps I've just followed:
- Flash Android 11 stock image from fairphone website
- Start Android 11, configure phone
- In mobile settings, uncheck VoLTE and check it back
- Same for wifi calling (uncheck then check)
- Make a call and check it's working well with Android. My operator has disabled 3G, so this check ensures me the VoLTE is well working on Android
Then, download UBports Installer 0.11.2 and start the process to install Ubuntu Touch 24.04-1.0 stable channel wipping user data.
Phone seems connected to 4G: the network status icon has letter « L ». Although voice phone call did not work.
I tried to call my Ubuntu Touch device with another Android phone and I didn't received the call on the Ubuntu Touch one.
I tried to run the
gdbuscommand and I got same result than you (neither registered, nor voice and sms capabilities).On a new test, I've started
journalctl -fand I attach the result here. Let me know if more logs are needed.Note that before doing the call, I disconnected wifi to be sure to use VoLTE and not VoWifi.
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I've just opened an issue on Gitlab so developpers can check the logs and ask me more of them if needed: https://gitlab.com/ubports/development/ubuntu-touch/-/issues/2281
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I took time to test with the different update channels available and VoLTE works with current 24.04-0.1/daily channel (update 2025-10-19/3).
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There's a ticket on the fp4 port that confirms your findings:
https://gitlab.com/ubports/porting/reference-device-ports/android11/fairphone-4/fairphone-fp4/-/issues/90It's fixed on the daily branch of 24.04, but otherwise I'm not aware of any timeline for the next RCs
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VoLTE is working on the FP4 on 24.04-1.1 RC1, thanks everybody!
