calls and voice mail blocked

[optimus]

Hello pinephone thread,
I'll probably be searching on that problem for a while, but I case someone can help, I'll post here first.

After having using a mmcli command that was meant to reboot the modem manually, I lost the ability to make or receive call. This is, what I suspect to be the cause, but it can be due to other factors, like hardware failure or carrier blacklisting me.

Among important symptoms that I can mentions are:
- I do can send/receive sms
- But I can't call/receive calls.
- Cell tower is fully detected.
- When my sim card is inserted in pinephone, people who try to call me, are unable to leave a message on my voice mail box, as if my carrier was thinking that my pinephone was answering, thus not activating the voice mail.
- On the other hand, when sim card is inserted in android, I can call/receive call, and people can leave messages on voice mail box.
- The problem persist after installing a fresh distro, as well as an upgraded one.

[ragreenburg]

I unfortunately don't have an answer for you, but it might be worth asking in the Matrix chats as you might get a quicker answer.

Here is the Mobian one, which is quite active but not so active that it feels like yelling in to a void.
https://matrix.to/#/#mobian:matrix.org

[TRS-80]

What was the exact command you entered? As it sounds like that will be needed to reverse this damage.

[wibble]

Could it be related to VoLTE support status for your carrier? More detail about VoLTE and test commands in this thread:
https://forum.pine64.org/showthread.php?tid=12560

[optimus]

What was the exact command you entered?  As it sounds like that will be needed to reverse this damage.

Since I thought that reinstalling a new image would resolve the problem, didn't think it could be useful to keep track of the command that caused it. Now, I learn by my mistake: some modifications are stored permanently in the modem, rather than on the sd card.

The command probably was one of those four:

mmcli -m any --command='AT+CFUN=1,1'
sudo systemctl restart eg25-manager.service
sudo systemctl restart eg25-manager
mmcli -m any --reset

There's a bug in my pinephone,some sms show up only after reboot. I thought I could just restart the modem to get those stuck sms, instead of rebooting.

Furthermore, after having gone through the mobian troubleshooting page, I succeeded bringing back the 3G cell mode, but the step toward re-enabling the voLTE 4G remains a mystery. I suspect that my carrier's system has to do some sort of digital handshake with the pinephone first.

[rocket2nfinity]

See the post #4 above to re-enable VoLTE

[optimus]

I found the solution, and I'll explain it.
I did all the steps in the link given in the link at comment #4.
Since my carrier (Bell) isn't it the list, I've tried those provided, one by one, until I found one that worked.

+QMBNCFG: "List",2,0,0,"hVoLTE-Verizon",0x05010141,202004091

I hope it will help people who are trying to enable voLTE calls with Bell.