The title says it all, this has been an occasional problem even back with Pinephone but is far worse now. Some days I cant dial out at all without reverting to 3G service which will be ending soon.
I cant be sure but it appears that I am receiving all/most incoming calls and SMSs; data is working fine too.
A sure way to fix the issue was to hardware switch the modem or even soft reboot it on the Pine, but that is not working now and I am having to use my Nokia 4g candybar phone to dial out.
Which mobile service provider?
golantelecom
Do they approve the BM818 modem for VoLTE?
as far as I have seen there is no approved or banned list, is thisnormal in the EU vs US? I used to just run 3g most of the time to avoid occasional issues since maybe 2018 when I got a pinephone as the net speed was similar, but was still using a (2-3G)N900 and a tethered tablet for web until the N900 SIM-death hit about 2020 before COVID-19 and I switched to the pine. I started to force 4g in the last year especially after I dropped pine64 for Purism since they are shutting down 2g/3g next year. I had a ticket open too but I was able to switch kill-reboot and there was never a good reason for the failure that support or I could track down. This isnew and is only when initiating calls, what log file should I be looking at for failed call inits? Is ther a way to pull modem logs too?
currently looking for the mmcli command to pull IMEI,(time passes) it is ok per Golan Telecom
Assuming you have BM818 Tool app installed and that it’s indicating a modem firmware dated at least September 2022, that VoLTE is enabled, and that you’ve rebooted at least once after enabling VoLTE, then you could:
see if there is an IMEI compatibility check on their website, input the modem’s IMEI (found in L5 Settings), and discover if it’s definitely approved for service
if not, there are 3rd-party IMEI/provider compatibility checks on the internet
or simply talk to Golan’s customer service to verify and troubleshoot
If compatible, VoLTE should work reliably these days, at least in my experience.
This can be found in main L5 Settings app.
There might be some AT command that can show it, but I’m not sure.