VoLTE in Australia

Does anyone in Australia with a L5 currently have VoLTE switched on and working?

The three major providers are shutting down their 3G networks this year.

I have tried to use the BM818 tool to enable VoLTE, but tests indicate that during a live call it is still falling back to HDSPA+, which I think is 3G still. Does anyone have this working for Telstra? (@irvinewade - pinging you because I’ve seen from other posts that you are also based in Australia and may have set this up already).

The firmware version is below.
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It is out of date, so contact Purism support (support@puri.sm); my modem firmware version below is up to date.

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I think it might be necessary to reboot as well.

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I’ve sent a support email I’ll update here if I get it working.

I believe I’ve reset both phone and modem multiple times after toggling the switch.

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Sorry, I have not tested Telstra now that I am using VoLTE.

The SIM in my Librem 5 is Voda. And I did specifically verify that 4G stays as 4G when making a “voice” call on the Librem 5 using Voda immediately after I enabled VoLTE. (I realise that’s not much help if you are on Telstra.)

For what it’s worth, even now on Voda I sometimes see the data connection change from 4G to 3G (and it still works, but presumably more slowly). So I don’t think Voda has fully shut down their entire 3G network and 3G support. I guess it could depend on the specific tower that you are using. 15 Dec last year (?) may have been the start date for the exercise, not the end date.

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Fascinating. My firmware version is far older (2019) and, albeit I use Mint Mobile USA, VoLTE works as described by those using current firmware.

Is there a compelling reason for me to upgrade?

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It depends if you like having the newest firmware for security patches, more optimized code for faster processing, etc. Take the time to weigh the benefits and consequences for yourself.

That being said, if it ain’t broke…

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Only if you are experiencing problems.

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So I got some support help to update my modem firmware and that process seems to have worked, but the phone still seems to be using HSDPA+ or UMTS when I press the “Check Volte” button in the bm818 tool during a live call. Often the phosh indicator still says 4G at the same time.

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Thanks for this update - did you test with the bm818 tool? because it doesnt look like the phosh indicator is always up-to-date?

I have a second pre-paid sim with amaysim (Optus) that I might test with also.

Im fairly sure that volte was working with my boost / telstra sim on the pinephone previously, so seems strange that it then would not work with this modem.

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No, m8. I just, you know, made a phone call and looked at the top line. :slight_smile:

Remember that a reboot may be needed in order to get everything to recognise that you have enabled VoLTE after doing so.

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I’ve had the same experience as you (my phone is in with repair rn so I haven’t tried it since before Christmas). Same thing, latest firmware, enabled VoLTE, confirmed with my carrier that my account had it enabled (works on an android phone) and I have never gotten it to work. Voice calls remain HSPA. Sounds like your network and Rogers here in Canada might be using the same gear perhaps. Obviously there is something in the modem firmware that isn’t negotiating the VoLTE part correctly for us for some reason. Maybe we’ll get a 5G modem soon…lol.

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Ok - so i had some time to try different sims.

I had access to 3:
Boost (Telstra)
Amaysim (Optus)
TPG (Vodafone)

The only one I could get VoLTE working with was the TPG/Vodafone one, which is unfortunate because it has by far the worst coverage. The Boost / Telstra SIM is by far the best experience - although I don’t know how much of that relates to where I was testing. Amaysim / Optus was absolutely horrible - by far the worst. The phosh modem status just looped between Amaysim and “Cellular” constantly and I was unable to make a call or use data.

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I had the same issue with modem firmware and an update has made it work on Vodafone in Australia (this thread)
I was able to get access to a Telsta sim so I tried that as well and calls do not work and bm818-tool reports it drops to UMTS while the call is active.

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