VOLTE (Voice over Long Term Evolution)

Keneda

@desolom please do not make multiple threads for the same topic, i'll let this one open as VoLTE issue is device agnostic, and close this one :
https://forums.ubports.com/topic/7535/volte-voice-over-long-term-evolution

I can tell you ubports dev team and community are well aware of that big problem for US users, but no one can tell when VoLTE will be implemented.
VoLTE is not an open source thing so it's not a trivial task to make this work on capable devices.

Also, VoLTE is a community concern since a long time now, threads about that already exist, you can search forum for more info, i.e. there : https://forums.ubports.com/topic/7384/the-definite-volte-deadline-date-in-the-usa-is-now-known?_=1646391705327

stanwood

Indeed, VoLTE is a huge and complicated task and we need help to go deep in this challenge.

According to the lastest UBports newsletter (that I received yesterday), a call for help has just been published by Jeroen:

Quote:

VoLTE help needed!

As you maybe know, some countries are switching off old networks in favor of the VoLTE protocol. And we are currently developing support for VoLTE for Ubuntu Touch. But, we need help!. We need people willing to work low-level on their device and work together with our VoLTE development team. So, We are looking for people with a particular skill set.

Well, actually it is in two different areas (that don't need to overlap within the same person). So if you can do one, that would already make us very happy!

We need help getting doubango to work with the commercial IMS core. To be able to do this it would help if you have:

Familiarity / experience with the following protocols/systems:

. VoIP telephony using SIP/RTP

. IPsec/ESP (IKE not required), particularly on Linux

. Optionally: knowledge of 3GPP IMS

. Experience in system-level C programming on Linux

. Ability to dive into existing, not well documented code base (doubango in this case)

And for the work on the Volla phone side integration:

. Familiar with system-level Android development/debugging
. Familiar with Android RIL and Android telephony APIs
. Optionally, familiar with 3GPP TS 07.10 multiplexing

. Some experience in reverse engineering baseband/modem interfaces

So, if any of these terms are familiar to you, please step up to the plate and become an Ubuntu Touch hero! Send me an email and I will forward it to the VoLTE development team.
(jeroen@ubports.com)

If you are unsure, soon we will organize a webinar where mr open source protocol stack Harald Welte (of Osmocom fame) will do a talk on VoLTE for us. Stay tuned for the date!

JLNeng9711

@stanwood maybe a idee for the xiaomi phones... The code used to activate trough #(number)# maybe be a start for collecting things

Unfortunatly i cant work on anything at the moment

kristatos

Is somebody able to tell about the status of "First steps in VoLTE"?
Is this project started, in which phase are we now, actual problems/showstopper, forecast?
I think this may help to clarify where UT stands in case of VoLTE.

Thanks

azraelpwnz

I miss having Ubuntu on my phone, and am interested in seeing where we are with VOLTE support?

Unfortunately I had to revert back to Android until support is added.

I may not be of much help, but if anyone would like to point out where I can try to help, I would love to at least try.

Keneda

@azraelpwnz said in VOLTE (Voice over Long Term Evolution):

I may not be of much help, but if anyone would like to point out where I can try to help, I would love to at least try

I may point you there if you have coding skill :

@stanwood said in VOLTE (Voice over Long Term Evolution):

So, if any of these terms are familiar to you, please step up to the plate and become an Ubuntu Touch hero! Send me an email and I will forward it to the VoLTE development team.
(jeroen@ubports.com)

If not, just like me you'll have to wait untill it reach our device to help testing

rocket2nfinity

You can also try our temporary solution of using Linphone and a sip provider ( we recommend Jmp.chat). It provides VoLTE equivalency and will keep your phone functional after July 1. With the Jmp.chat webapp, you'll even get MMS (with limited notifications). See our North American Issues Telegram group, and i'll be writing something up about it hopefully this week.

We have some progress regarding VoLTE, but nothing that will be usable by July 1.

GT

Hi @rocket2nfinity , it's great to hear that some progress has been made with regard to VoLTE.

I just want to ask you how difficult it is to implement and when about we can expect working VoLTE. Will it be rather in likely end of this year, early next year, first half of next year, or even later?

I am asking, because I tend to buy a new phone that will require VoLTE in the medium term to place calls. Thanks a lot in advance.

domubpkm

Official communications so far regarding 4G phone calls remain rather hazy. My personal feeling is that Volte will be set up in the medium/long term (impossible to predict a deployment schedule depending on the particularities of smartphones) and that the Volla Phone will probably be one of the first (or the first) smartphone to welcome Volte (i don't know when).

Keneda

@domubpkm said in VOLTE (Voice over Long Term Evolution):

Official communications so far regarding 4G phone calls remain rather hazy.

Some update here : https://forums.ubports.com/topic/8028/one-plus-6t-mclaren-supported/8?_=1660670499324

@rocket2nfinity said in One plus 6T McLaren Supported?:

IRT (in regard to ?) VoLTE, we've had a lot of progress with the OP6T. We need testers. Please see our North American carrier issues group on Telegram/Teleports

rocket2nfinity

@gt Maybe shorter term for OP6T, much longer if ever, for other devices. It's really complicated stuff.

But, for those devices that won't get it quickly, possibly never, our Linphone+sip solution works flawlessy. It is also an unfinished effort, so it's a little clumsy. But you will get calls and messages. Need testers for this too.

Ghost504

@rocket2nfinity could you point me in the right direction for more info on setting up xmpp/jabber on UT for use with jumpchat and also SIP? I recently got a Pixel 3a, so not the relevant device that was being discussed, but this is certainly a subject I am interested in until 20.04 drops (will donate towards that when able).

rocket2nfinity

@ghost504 You need to join one of the UT Telegram groups, NA carrier Issues, or the main UT will do, and ask for the Linphone app as it is not yet published in the open store for 64 bit devices. Then ask about the Rik Shaw Method for setting it up. One of us will guide you.

We have a guy trying to put together a simplified post to post here, but he hasn't finished yet as it gets complicated in two places. Most so far need a little help. So, we really do recommend going to Telegram/Teleports for that help.

Either way, it also requires a sip provider. I usually recommend jmp.chat They are both inexpensive, easy to set up, and can also do XMPP if our XMPP apps get fixed.