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!

@mariogrip we are collaborating on the North America Carrier Issues telegram group, and are not certain how to determine if a call we make is indeed with VoLTE or instead 2G. @tigerpro and @Inali are there and set for testing, as am I.

If we use the list-contexts ofono script and it shows the IMS context is not active, does that mean it is not able to do VoLTE yet? Or instead, @fredldotme gave us this command to check:

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?

If you could give your input on what is the best way to know if we have done all the magic to have the device capable of VoLTE it would help us know what we are dealing with. Thank you for everything along the way!

@lduboeuf said in Can't receive SMS:

No issue for me since a week now on 20.04 ( devel updated each day, and device shut
down every evening )

Great news! To help understand, can you help me remember what piece(s) seem to have fixed the issue for you? Was it the updated ofono, the updated nuntium, or other? Since there were multiple things going on I am not sure where the SMS reliability issue was addressed. Any link to the key issue would be appreciated.

@wizardi3 of course it is not certain, but in our discussions on the "North America Carrier Issues" telegram group, our speculation is that there isn't a lot of motivation for T-Mobile to shut down the 2G network. It's frequency spectrum doesn't conflict with pending 5G (that is why we understand US carriers have discontinued 3G: to free up the frequency band for 5G). Also, there are existing 2G industrial and commercial customers (warehouses, package tracking, etc.) that they make money from.

So, it certainly can be the case that they will shut down the 2G band with little warning, but we are hopeful that it will last long enough. In the meantime it remains the only way to have a working UT phone in the USA, so we will stay with it until we can't

@wizardi3 said in USA: T-Mobile (and MVNO) 2G settings for a fully functional UT device:

T-Mobile is phasing out 2G this month.

Do you have a source for this? According to their own site (link in first post above), "We’ve also shared that we plan to retire T-Mobile’s older GSM 2G network as well, but no date has been set. We will update this page with any additional information in the future."

@lakotaubp and @mw4jet I have joined you with a P3aXL 20.04 install on a secondary device. A few observations:

• Calls work in 2G mode (T-Mobile mvno) the same as in 16.04, but no MMS (MMS is working in 16.04).
• Mobile data doesn't seem to work in 4G or 2G modes (this is likely why MMS doesn't work if no mobile data then no MMS?).
• Disabling wifi doesn't seem to work (it re-connects / re-activates).
• Bluetooth doesn't seem to work.
• The open store is basically empty

So for any of the above bugs (mobile data / bluetooth / wifi re-connecting) should I report them or just hold onto them for now?

@ultrasonicnoise what country are you in and what carrier are you using?

@mdl I am sorry to disappoint you, but from our testing your ONLY option for UT to work with USA carriers is the above T-Mobile (or mvno) settings. ATT, Verizon, and T-Mobile all dropped their 3G networks last year and I don't think (??) anyone has gotten ATT or Verizon to work in 2G mode. 4G (LTE), as noted above, is not yet supported by UT Until very recently, we all thought there was NO carrier working with UT after the drop of 3G networks. Thankfully T-Mobile still works in 2G, so that is as successful as we are right now!

@mw4jet said in USA: T-Mobile (and MVNO) 2G settings for a fully functional UT device:

@rik I saw your posts on Telegram and figured I would give this a try. I had just reflashed my OP6T back to android 12 to peddle on Ebay, so I reflashed to UT and find no change from what I had before, Calls in and out, SMS in and out, no MMS at all. I have it in 2G on US Mobile.

Sorry I have lost track of your specific issues, but MMS photos should be working on US Mobile (T-Mobile). You do have wifi disabled when attempting to download a MMS, correct? Additionally, if it is a group MMS then you need the group pre-created (this is "fiddly": you need to look in the error log to find what phone numbers are part of the group message, then manually create the group with those numbers, then again attempt to download). I think @rocket2nfinity has an OP6T and can confirm that MMS is working in 2G mode.

Do you have any other MODS on the device? I had done some fiddling to the phone before but it's all stock UT now. I have a Pixel 3A but I cannot try it on US Mobile as it was supposed to be unlocked but it only works on AT&T so I cannot try that one.

Sorry you got a carrier locked one. For me, yes I did some "fiddling" in the past, but am now at "stock RC channel".

@keneda said in Is there a phone that actually calls (USA networks) with UT?:

@rik
So that means under UT it is VoLTE capable also in EU, and in the rest of the world ?

That kind of "detail" is important to better spread to UT users.

For instance, at least, it should be mentionned in its device list page under "cellular" https://devices.ubuntu-touch.io/device/cheeseburger/

Well I think it is more of a "huh no one knows why it works" situation: again UT can't make a call out in 4G / VoLTE even though incoming calls do get received. I think it is sort of in the "we won't really announce this as a feature because it is half workable and really needs looking at". But I don't own a OP5 so I will defer to what others think.

@keneda said in Is there a phone that actually calls (USA networks) with UT?:

When under UT ?!?

Yes, believe it or not

@lunameadows you can use "2g only" mode for T-Mobile and T-Mobile MVNOs in the USA for a fully functional phone (calls, sms / mms, data): https://forums.ubports.com/topic/8338

@777funk you can use T-Mobile or an MVNO and set it to "2G only" for a fully functioning phone in the USA. See https://forums.ubports.com/topic/8338

Updated Nov 6, 2023

Last year when T-Mobile shut down their 3G servers (and said they were going to shut down their 2G servers as well) we thought it was the end of the road until UT would support 4G calls (VoLTE). In fact many have left UT as their daily drivers because of the lack of telephony functionality since that time.

However, the T-Mobile 2G servers are still functioning until April 2024, so they can be used for calls as a stopgap. Note that time is running out, hopefully UT will support VoLTE calls before 2G is shut down!

Also note that in 4G mode cellular data works fine, but calls do not auto-negotiate down from 4G to 2G and so incoming calls will be missed. Previously when the 3G network was still up, UT would auto-negotiate down from 4G to 3G when a call was coming in, meaning the phone could be kept in 4G mode. But with 3G servers offline and no auto-negotiating down from 4G to 2G for calls it means leaving the phone in 2G only mode is the only way to reliably receive and make calls. Data speeds are slow, but that saves your MB! So use 4G mode for speed (but no calls) or 2G mode for calls and slow speed

Until relatively recently, we used to have to set multiple APN entries (one for cellular data, a second one for MMS), and this was confusing because many providers only have a single APN, so we had to use a mixture of APNs from multiple carriers to get around the problem. Thankfully, we can now correctly use the Internet + MMS APN type in UT, so it is much more simple to set an APN correctly.

Below are some collected APNs for T-Mobile and T-Mobile MVNO carriers in the USA:

T-Mobile USA APN Settings

Used For: Internet + MMS
Name: T-Mobile
APN: fast.tmobile.com <NOTE: do not use t-mobile.com it will not work!>
MMSC: http://mms.msg.eng.t-mobile.com/mms/wapenc
<Proxy, Proxy Port, User Name, Password ALL BLANK>

Alternative:
Used For: Internet + MMS
Name: T-Mobile
APN: epc.tmobile.com
MMSC: http://mms.msg.eng.t-mobile.com/mms/wapenc
<Proxy, Proxy Port, User Name, Password ALL BLANK>

US Mobile APN Settings

Used For: Internet + MMS
Name: US Mobile
APN: pwg
MMSC: http://pwg.mmsmvno.com/mms/wapenc
<Proxy, Proxy Port, User Name, Password ALL BLANK>

Mint Mobile APN Settings

Used For: Internet + MMS
Name: Mint Mobile
APN: wholesale
MMSC: http://wholesale.mmsmvno.com/mms/wapenc
<Proxy, Proxy Port, User Name, Password ALL BLANK>

Tello APN Settings

Used For: Internet + MMS
Name: Tello
APN: wholesale
MMSC: http://wholesale.mmsmvno.com/mms/wapenc
<Proxy, Proxy Port, User Name, Password ALL BLANK>

To make sure the settings are applied, after changing APN entries please reboot.

Note that, yes, it is known that 2G audio isn't great for calls, but hey it is a functioning phone!

Please reply here with other MVNOs that may work in the USA, I will keep updating this post to stay current.

@myrcy we have been working in the "North America Carrier Issues" Telegram group and have determined the best (well, only) way to have full service (calls in / out, mms in / out, mobile data) until UT supports VoLTE is to use 2G mode, which has not been shut down by T-Mobile yet. See https://forums.ubports.com/topic/8338

@beli3ver thanks again to the community for helping keep this going, and thanks for your contributions.

As a casual user, is there a simple guide / "recommended" set of blocklists to use? Or maybe a brief summary of the different providers, such as:

Energized vs. StevenBlack since they both provide multiple?

From another angle, is there any performance negative to just "enabling all" and then if it is blocking too much to dig a bit further?

Thanks for any guidance

@stanwood said in Reset the bluetooth?:

@totalrando You can remove unworking bluetooth devices pairings.
Open the terminal, type bluetoothctl, than type remove (mac address).
Than you can make a fresh new pairing of your devices in the usual way.

Thank you, I was looking for something like this. I had a few devices that had the "forget this device" greyed out, and they would auto-connect (without actually connecting) so I couldn't remove them to try and correctly add them, this way I got them cleared out. Thanks again!

@d0od said in I have ended my contract with the UBports Foundation:

I appreciate I'm not popular in the Ubports community

@d0od don't sell yourself short, I (and I am sure many others) have great appreciation for your work and all you do for the Ubuntu community (and, as an extension, the Ubuntu Touch community): we all benefit from your contributions.

@billboy5690 said in Mic distorted in speakerphone mode:

@billboy5690 Thanks all I found it, there is a reset all in setting

You can also change the scaling (and other things) by using "UT Tweak Tool" if it is too small / too large / etc.

@billboy5690 said in Mic distorted in speakerphone mode:

@rik Can you please clue me in as to how to sign up or access it.I assume its called the development channel.Thank you for reply

In System Settings > Updates > "Gear" you will see "Channels". Click that and choose "Development". Then go back to Updates and you should see the Download option, and then Install.

Note that being on "Development" can mean than some unstable things will come through, but for the fixes you mention it is the way to get them "early". In a few weeks "stable OTA-22" will come out and that will have the fixes. So at that time you could change back to "stable" and in then install OTA-22 to be in the safest place.

There are other good things in "Devel" right now such as better battery life, GPU acceleration, etc, that again will all get to OTA-22 if you can wait a few weeks.