<![CDATA[[Qualcomm} VoLTE call for testing]]>Hi everyone,

After a brief delay caused by some medical issues on my part, I'm excited to announce that I’ve successfully developed a fully functional VoLTE implementation for Qualcomm devices. I've been using the Fairphone 5 (FP5) as my testing platform, and everything is now up and running.

I do however request some help with testing, anyone wanting to help out with that?

]]>https://forums.ubports.com/topic/10484/qualcomm-volte-call-for-testingRSS for NodeThu, 11 Jun 2026 06:43:35 GMTSun, 13 Oct 2024 18:12:17 GMT60<![CDATA[Reply to [Qualcomm} VoLTE call for testing on Thu, 18 Sep 2025 18:44:27 GMT]]>@Lakotaubp did it work?

I've got a FP4 with 24.04-1 daily and would love to get VoLTE running.

]]>https://forums.ubports.com/post/88210https://forums.ubports.com/post/88210Thu, 18 Sep 2025 18:44:27 GMT<![CDATA[Reply to [Qualcomm} VoLTE call for testing on Thu, 06 Feb 2025 01:52:17 GMT]]>@JDee-Intl Ideally, you have to flash the latest Android 13 from their site. Fairphone OS is Android so they're the same. Latest Android 14 would also work however when I tried that on mine, Fingerprint wasn't working. I'm not sure if that's the exact reason though. Maybe you can try it yourself see if it's the same 😄
In any case, Android 13 is still recommended to avoid issues that is not consistent with other people.

Also, this isn't the right thread for this 😅

]]>https://forums.ubports.com/post/84566https://forums.ubports.com/post/84566Thu, 06 Feb 2025 01:52:17 GMT<![CDATA[Reply to [Qualcomm} VoLTE call for testing on Wed, 05 Feb 2025 22:37:54 GMT]]>I've got a new FairPhone 5 in hand. Just need to know which version of Android to install. Instructions say "base version of Android 13", but Fairphone is shipped with it's own version of Android called Fairphone OS (which was 13 until it upgraded to 14).

So, do I need FairPhone OS (based on Android 13) or where is the base version of Android 13 that I should use?

Thanks in advance!!!

]]>https://forums.ubports.com/post/84564https://forums.ubports.com/post/84564Wed, 05 Feb 2025 22:37:54 GMT<![CDATA[Reply to [Qualcomm} VoLTE call for testing on Wed, 15 Jan 2025 21:16:06 GMT]]>@Lakotaubp
I am not using Noble. I had no idea it was even around yet until today.

]]>https://forums.ubports.com/post/84303https://forums.ubports.com/post/84303Wed, 15 Jan 2025 21:16:06 GMT<![CDATA[Reply to [Qualcomm} VoLTE call for testing on Wed, 15 Jan 2025 18:23:57 GMT]]>@Inali If you are using 24.04 Noble the other issues are probably best mentioned here https://forums.ubports.com/topic/10688/this-week-in-development-week-52-2024/80 of the FP5 telegram group https://t.me/+uGo3xe899gwyNmNk

]]>https://forums.ubports.com/post/84301https://forums.ubports.com/post/84301Wed, 15 Jan 2025 18:23:57 GMT<![CDATA[Reply to [Qualcomm} VoLTE call for testing on Wed, 15 Jan 2025 16:00:14 GMT]]>Regardless, on build 177 for FP5, I have successfully registered 5G and VoLTE and was able to call my voicemail, but the older issues persist.

Those being dialing my voicemail PIN doesn't register, and I cannot hang up the call and am forced to restart the phone.

After rebooting the phone, VoLTE comes back but as soon as I make a call, cellular shows 0 bars and after a moment it comes back with full LTE with no VoLTE. Rebooting the phone again shows LTE with VoLTE but calling again drops cellular entirely and it comes back with LTE and no VoLTE.

If curious:
phablet@ubuntu-phablet:~$ gdbus call --system --dest org.ofono --object-path /ril_0 --method org.ofono.IpMultimediaSystem.GetProperties

({'Registered': <true>, 'Registration': <'auto'>, 'VoiceCapable': <true>, 'SmsCapable': <false>},)

]]>https://forums.ubports.com/post/84300https://forums.ubports.com/post/84300Wed, 15 Jan 2025 16:00:14 GMT<![CDATA[Reply to [Qualcomm} VoLTE call for testing on Wed, 15 Jan 2025 15:30:59 GMT]]>Maybe this should be moved to outside the FP5 forum? It's chocked full of people who aren't using the FP5.

]]>https://forums.ubports.com/post/84298https://forums.ubports.com/post/84298Wed, 15 Jan 2025 15:30:59 GMT<![CDATA[Reply to [Qualcomm} VoLTE call for testing on Sat, 07 Dec 2024 16:59:13 GMT]]>@AppLee Now I see, said the blind man! I could not figure out why I couldn't write to the filesystem as root and sudo didn't work with the phone PIN. It's read-only because the entire filesystem is laid down during the porting process and thus only modified by the developers and then included in the port by the porters.

I'll get back to learning the porting process and waiting for the FP5 to go on sale! LOL. Thank you and I hope I'm not stating the obvious, but this is definitely helping me and hopefully others who get involved and read these forums.

]]>https://forums.ubports.com/post/83803https://forums.ubports.com/post/83803Sat, 07 Dec 2024 16:59:13 GMT<![CDATA[Reply to [Qualcomm} VoLTE call for testing on Sat, 07 Dec 2024 16:52:27 GMT]]>@Keneda My mistake...I thought I read the port may work for GP3aXL (<- Oh, that's a horrible abbreviation), so I was experimenting.

]]>https://forums.ubports.com/post/83802https://forums.ubports.com/post/83802Sat, 07 Dec 2024 16:52:27 GMT<![CDATA[Reply to [Qualcomm} VoLTE call for testing on Sat, 07 Dec 2024 11:04:36 GMT]]>@Keneda
I realized ; see there: https://forums.ubports.com/post/83786
:winking_face:
Using APT is expected in the "porting phase" so to speak.
And I wasn't sure they realized that testing VoLTE is not something any user can do but needs porting skills...

]]>https://forums.ubports.com/post/83790https://forums.ubports.com/post/83790Sat, 07 Dec 2024 11:04:36 GMT<![CDATA[Reply to [Qualcomm} VoLTE call for testing on Sat, 07 Dec 2024 02:16:08 GMT]]>@AppLee
He is not mistaking, see there :

https://forums.ubports.com/topic/10484/qualcomm-volte-call-for-testing/25?_=1733537347588

Well, he is mistaking because he tries to install VoLTE on the wrong device, but installing it on the good one, Fairphone 5, needs installing via apt.

]]>https://forums.ubports.com/post/83787https://forums.ubports.com/post/83787Sat, 07 Dec 2024 02:16:08 GMT<![CDATA[Reply to [Qualcomm} VoLTE call for testing on Fri, 06 Dec 2024 23:16:45 GMT]]>HI and welcome @JDee-Intl

You might be in the wrong place.
This post is about testing out the VoLTE plugins for the Fairphone5 and I surmise you just tried to install some deb packages like it would be a regular debian based OS.
This is a common mistake, but the rootfs is readonly on Ubuntu Touch and apt is not supported, it is restricted to developers for creating the image we can later use.

]]>https://forums.ubports.com/post/83785https://forums.ubports.com/post/83785Fri, 06 Dec 2024 23:16:45 GMT<![CDATA[Reply to [Qualcomm} VoLTE call for testing on Fri, 06 Dec 2024 07:52:07 GMT]]>@tigerpro I'm getting the same thing and I'm sure I've got the package spelled correct. When I do an apt update, I get an error:

Archives directory /var/cache/apt/archives/aprtial is missing. - Acquire (30: Read-only file system)

I new here, so apologies if I'm asking an obvious questions.

Platform: Latest Ubuntu Touch installed on Google Pixel 3a XL with AT&T Prepaid service in the U.S. and planning to purchase a FP5 in the near term.

]]>https://forums.ubports.com/post/83761https://forums.ubports.com/post/83761Fri, 06 Dec 2024 07:52:07 GMT<![CDATA[Reply to [Qualcomm} VoLTE call for testing on Thu, 24 Oct 2024 20:17:51 GMT]]>I have now installed Ubuntu Touch especially for this VoLte test. I have probably done everything wrong that can be done wrong. Installed the Ubuntu Tweak Tool because of the write permissions. Then off to the terminal and installed the system with sudo apt update&&sudo apt full-upgrade and the Ofono stuff. What can I say, suddenly there were no more SIM cards available and my WLAN data volume was used up, so that went down the drain 😁

]]>https://forums.ubports.com/post/82947https://forums.ubports.com/post/82947Thu, 24 Oct 2024 20:17:51 GMT<![CDATA[Reply to [Qualcomm} VoLTE call for testing on Thu, 24 Oct 2024 07:33:20 GMT]]>@wilfridd said in [Qualcomm} VoLTE call for testing:

VoLTE enabled on RN9P (joyeuse) too.
Despite most the issuing or receiving VoLTE calls failed, it's very promising! When calling, oFono shows 2 dials at the same time and hanging up is not possible. The callee has not call indication.
I was able to make a successful VoLTE call somehow. I could hear ringing then could talk for about 20sec and all of a sudden the call dropped itself, leaving oFono unresponsive.

Congratulations on this successful VoLte attempt on Joyeuse. Exactly my device. May I ask you a question? Do you know which Android 10 version you used before you installed Ubuntu Touch (Xenial, Focal)? If you don't know anymore, no problem, at least now I have hope to get back to Ubuntu Touch at some point. If VoLte works better I think I will come back. Does it work with dual SIM or only on 1 SIM? I might have to install Ubuntu Touch again myself to test it. Only with this script or code from Mario I would definitely need help I'm not that good on the terminal 😊

]]>https://forums.ubports.com/post/82919https://forums.ubports.com/post/82919Thu, 24 Oct 2024 07:33:20 GMT<![CDATA[Reply to [Qualcomm} VoLTE call for testing on Thu, 24 Oct 2024 02:20:02 GMT]]>On the Mi 6. radioInterface = 1.1
VoLTE cannot be used
Although he has already executed the following code
b67ccdc4-a196-4440-803a-237bd41de3c0-图片.png
https://github.com/mer-hybris/ofono-binder-plugin/blob/9ad094cbf772e0796015ad517b727d8577174b74/src/binder_ims.c#L276

phablet@ubuntu-phablet:~$ gdbus call --system --dest org.ofono --object-path /ril_0 --method org.ofono.IpMultimediaSystem.GetProperties

({'Registered': <false>, 'Registration': <'auto'>, 'VoiceCapable': <false>, 'SmsCapable': <false>},)
]]>https://forums.ubports.com/post/82917https://forums.ubports.com/post/82917Thu, 24 Oct 2024 02:20:02 GMT<![CDATA[Reply to [Qualcomm} VoLTE call for testing on Wed, 23 Oct 2024 21:50:54 GMT]]>VoLTE enabled on RN9P (joyeuse) too.
Despite most the issuing or receiving VoLTE calls failed, it's very promising! When calling, oFono shows 2 dials at the same time and hanging up is not possible. The callee has not call indication.
I was able to make a successful VoLTE call somehow. I could hear ringing then could talk for about 20sec and all of a sudden the call dropped itself, leaving oFono unresponsive.

]]>https://forums.ubports.com/post/82913https://forums.ubports.com/post/82913Wed, 23 Oct 2024 21:50:54 GMT<![CDATA[Reply to [Qualcomm} VoLTE call for testing on Wed, 23 Oct 2024 18:23:41 GMT]]>

Is there a way to make VoLTE work with radioInterface = 1.4 ?

Finally, after commenting on the IMS services lines in the file init.disabled.rc the VoLTE works with radioInterface = 1.4 on POCO X3 NFC.

Some features don't seem to work properly anymore.
I will report on the issues encountered after a few days of testing.

]]>https://forums.ubports.com/post/82904https://forums.ubports.com/post/82904Wed, 23 Oct 2024 18:23:41 GMT<![CDATA[Reply to [Qualcomm} VoLTE call for testing on Wed, 23 Oct 2024 09:01:00 GMT]]>Interestingly, these Miatool devices also have Qualcom chipsets. However, Xiaomi and their questionable Android 10 versions wherever the difference is. Partly the telephony does not work then it is no wonder that somehow there is no porter for Miatool devices at the moment. So should work exactly like this method presented by Mario. However, I am not a porter and no longer on Ubuntu Touch.

]]>https://forums.ubports.com/post/82893https://forums.ubports.com/post/82893Wed, 23 Oct 2024 09:01:00 GMT<![CDATA[Reply to [Qualcomm} VoLTE call for testing on Wed, 23 Oct 2024 08:09:17 GMT]]>I'm working on the POCO X3 NFC (surya) port with the maintainer and I tried Marius' changes, without success.
The device is 4G only, and there is no android.hardware.radio@1.5.so (android 10).

@mariogrip
Is there a way to make VoLTE work with radioInterface = 1.4 ?

]]>https://forums.ubports.com/post/82891https://forums.ubports.com/post/82891Wed, 23 Oct 2024 08:09:17 GMT<![CDATA[Reply to [Qualcomm} VoLTE call for testing on Mon, 21 Oct 2024 18:34:13 GMT]]>Still testing.

-Fresh install of Fairphone 5's dev r43 build.
-Installed ofono plugin with the previously stated instructions and changed qti.conf.

Phone still shows LTE + VoLTE icons. If I call my voicemail it still shows LTE + VoLTE, so I assume no 2G calling. During my voicemail calls, I cannot register any button press such as entering my voicemail PIN. It shows the button press on my screen and makes the sound, but the call does not register input on their end, thus I could not listen to my voicemails.

Also I was unable to hangup, I had to reboot the phone. Opening the dialer app without reboot showed it immediately "calling" the last number without telling it too, but it never actually calls. Reboot is what fixes this.

"gdbus call --system --dest org.ofono --object-path /ril_0 --method org.ofono.IpMultimediaSystem.GetProperties"

shows:

({'Registered': <true>, 'Registration': <'auto'>, 'VoiceCapable': <true>, 'SmsCapable': <false>},)

]]>https://forums.ubports.com/post/82863https://forums.ubports.com/post/82863Mon, 21 Oct 2024 18:34:13 GMT<![CDATA[Reply to [Qualcomm} VoLTE call for testing on Fri, 18 Oct 2024 18:17:32 GMT]]>@uxes thank you
I tried to set this option.

phablet@ubuntu-phablet:~$ gdbus call --system --dest org.ofono --object-path /ril_0 --method org.ofono.IpMultimediaSystem.GetProperties

({'Registered': <false>, 'Registration': <'auto'>, 'VoiceCapable': <false>, 'SmsCapable': <false>},)
]]>https://forums.ubports.com/post/82782https://forums.ubports.com/post/82782Fri, 18 Oct 2024 18:17:32 GMT<![CDATA[Reply to [Qualcomm} VoLTE call for testing on Fri, 18 Oct 2024 16:24:26 GMT]]> 
gdbus call --system --dest org.ofono --object-path /ril_0 --method org.ofono.IpMultimediaSystem.GetProperties

Is this the most definitive way to tell if the phone is VoLTE capable or not?

We did get confirmation from @Inali that with this command their device does show "VoiceCapable": <true> so I think it is a good command to confirm if the phone is IMS registered and active. They did have issues making or receiving calls as it was starting a double call (one in 2G, one maybe with VoLTE we think?) and also SMS is broken with VoLTE enabled, but this also showed in the command. So a few steps forward at least!

]]>https://forums.ubports.com/post/82781https://forums.ubports.com/post/82781Fri, 18 Oct 2024 16:24:26 GMT