Status of VoLTE (Voice over LTE 4G) implementation?

GT

Hi all,
I have seen that VoLTE is an item on the Development Planning 2023 list and I wanted to ask what the current status of the VoLTE (Voice over LTE, 4G) implementation is and how it is going forward with it? Thanks a lot!

Lakotaubp

@gt VoLTE is not yet working on anyUT device. We know how important this is and work on it is being carried out with some success but is not yet ready for testing. Also the PinePhone and PinePhone Pro are both capable of voLTE and work is moving quickly on those. There are quite a few threads on the forum covering voLTE and I would use the search function on the Forum to find them and have a read.

jonsger

Does someone know what happened to the work of Sysmocom for VoLTE on the Volla Phones: blog post and technical investigation report.

I'm currently running a Librem 5 with PureOS, which in theory has VoLTE support in the modem. But can't get it working with Deutsche Telekom (works with Vodafone DE). So I think for VoLTE we need a different solution in the long term, then relying on IoT modems with VoLTE support.

I would like to make a "kick-off" donation for "2.1 Open Source IMS Implementation" to the UBports Foundation. It's tax-deductible, so say something like 1.000€ So someone capable from Sysmocom or so can start working on it.

Sunset

@jonsger I would also be interested in helping fund VoLTE. The phone ecosystem situation in the US is downright dismal right now and without working VoLTE there's not really a way around it.

Could some kind of bounty be set up?

Keneda

@Sunset said in Status of VoLTE (Voice over LTE 4G) implementation?:

Could some kind of bounty be set up?

I guess it can, as that was done for Waydroid.

beyolf

i will be more than happy to help in the development of VoLTE support in UT, if i can. So if someone is working or is planning to work on that , contact me if you want to split the development effort.

fairose

I am also interested in supporting VoLTE-development with a donation. Is there any special equipment needed? Or something that needs to be done by a company? Or anything else that could be founded by the community? If someone working on VoLTE for UT is reading this maybe describing the current state and specific problems would be great.

wizardi3

@jonsger said in Status of VoLTE (Voice over LTE 4G) implementation?:

Does someone know what happened to the work of Sysmocom for VoLTE on the Volla Phones: blog post and technical investigation report.

I'm currently running a Librem 5 with PureOS, which in theory has VoLTE support in the modem. But can't get it working with Deutsche Telekom (works with Vodafone DE). So I think for VoLTE we need a different solution in the long term, then relying on IoT modems with VoLTE support.

I would like to make a "kick-off" donation for "2.1 Open Source IMS Implementation" to the UBports Foundation. It's tax-deductible, so say something like 1.000€ So someone capable from Sysmocom or so can start working on it.

The carrier doesn't have to support a device(phone) just because the device conforms to its network. Purism Libtem 5 and PureOS are perfect examples. Purism offers what they call an AweSim that allows you to connect unsupported devices to their network details here https://puri.sm/products/librem-awesim/