Latest modem firmware breaks voice calls

[Frexit]

Hi,
after installing the modem firmware from
https://forum.pine64.org/showthread.php?tid=11815

Trying to make a voice call results in an "Unknown error". ModemManager points ad "org.freedesktop.ModemManager1.Error.MobileEquipment.Unknown".

$ mmcli -m 0 --voice-create-call=number=MYNUMBERHERE 
Successfully created new call: /org/freedesktop/ModemManager1/Call/1
$ sudo qdbus --system org.freedesktop.ModemManager1 /org/freedesktop/ModemManager1/Call/1 org.freedesktop.ModemManager1.Call.Start
Error: org.freedesktop.ModemManager1.Error.MobileEquipment.Unknown
Unknown error

Any idea what went wrong here? Is there any other firmware build to try?

Nop : you will find all the commands to make a voice call on my site : https://www.alsatux.com/Pinephone (at bottom).
And you have a syntax error : your forgot the " around the number=MUNUMBERHERE on the first command.
But if someone made the full process using DBus only on CLI, it will be very cool to share here...

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$ gdbus call --system --dest org.freedesktop.ModemManager1 --object-path /org/freedesktop/ModemManager1/Call/CALLID --method org.freedesktop.ModemManager1.Call.Start

Command tested !