Unknown behaviour when signal quality is poor
aleksander at aleksander.es
Mon Mar 29 08:39:52 UTC 2021
>> >> In our case we have switched the modem to mbim mode to be able to receive / be aware of sim removal notifications.
>> > Didn't we already add the SIM removal notifications in QMI modems?
>> > Have you tried with ModemManager git master recently?
> Since which version are SIM removal notifications active for QMI modems ? I am not sure if our system will support the latest MM release.
> Is it ModemManager 1.16.0 ? https://github.com/freedesktop/ModemManager/blob/master/NEWS#L111
You can try with 1.16.0 or 1.16.2, yes.
>> >> Are QMI WDS indications still received when modem is in MBIM mode?
>> > No, but you would get "Basic Connect" "Connect" "Notification"
>> > messages, or at least that's what should happen when network-initiated
>> > disconnections happen.
> I am not sure I understand this correctly, what is the notification received when modem gets disconnected ? Is it a "Disconnected" notification or just a transition from "Connected" to "Registered" ?
If using the MBIM protocol, what you receive upon a network-initiated
disconnection would be a "Notification" of type "Connect" (that's just
the message name) in the "Basic Connect" service specifying that the
"activation state" field is "deactivated"
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