Keeping this alive - I am creating a new topic now that the original has been automatically closed off, as the issue has not yet been resolved, at least not for e OS on the Telstra network in Australia anyway.
VoWifi is still not working for me on the Telstra network in Australia when using e OS. FairphoneOS on the same device has fully functional wifi calling, and all other (different) handsets I’ve tested for wifi calling functionality also work without issues with my SIM. Haven’t had any updates from the developers for a few weeks now, the next development cycle window for this bug (#9290) starts on 21 September 2026, so am assuming someone will start looking at it again on or after that date. I’ve provided logs gathered from FPOS and from e OS so they can compare how the two operating systems are behaving (one works, and the other doesn’t). Hopefully that helps find out what the issue is.
@Manoj are you able to get any more updates about bug 9290 from the developers?
Thank you, he replied at 3am my time, so I was asleep! I’ll try that build as soon as I can. It’s the third debug build I’ve tried now…crossing fingers.
Good news, the build I installed has fixed VoWifi on e OS, on the Telstra network, which is fantastic news! Big thanks to the development team who worked on this. They advised that there was a service called “CACert” which needed to be enabled, as they could see it generating errors in the latest batch of logs I provided for them.
I tested in aeroplane mode with only wifi enabled, and was successfully able to make phone calls and send SMS/MMS.
Bad news… e OS 4.3 may have gotten wifi calling working, however…
wifi calling only works when in aeroplane mode, but doesn’t work with mobile data off and wifi on (doesn’t work when not in aeroplane mode) and I’ve checked the wifi calling preferences to prefer wifi calling, and this doesn’t make any difference
MMS is also completely broken in 4.3 no matter what adjustments are made to the APNs
For those who are keeping track, here are some updates after trying the e OS 4.4 beta:
Bug #9290 - wifi calling now works without needing to put the phone into aeroplane mode (eg it works normally now, how every other phone works), so that’s a win…let’s see if it continues to work when the final release of 4.4 comes out.
However, MMS in 4.3 is completely broken for me. Won’t send or receive MMS since upgrading to 4.3 and also broken in the 4.4 beta too (bug #9711 opened for the MMS issue).
The ongoing regression of the APNs for the Telstra network is getting a bit tiring.
FPOS - APNs are correct and everything just works like a dream
e OS - APNs are full of incorrect config including incorrect case on two of the APNs, and even shows a non-Telstra APN, as well as a 3g-specific APN and 3g has been shut down in Australia quite a while ago! I’ve mentioned the APN issues previously to one of the developers however it has not improved in any way. @Manoj can we have a meeting with the developer for #9290 so I can again inform them that the APNs I’m seeing are a complete and utter dumpster fire, and are most likely contributing to the VoWifi and MMS issues that keep cropping up?
Suggest you mention this in the issue on Gitlab. I will pass on this message to the developer, and he can put what options to discuss are available in the issue.