On 16/08/18 17:30, Bob Ham wrote: > Possibly, yes. The SimTech (== SIMCom) plugin is using the > MMBroadbandModemQmi class which means I either need to (1) subclass > MMBroadbandModemQmi and mix in AT commands, or (2) use the plugin's > AT-only MBroadbandModemSimtech class and add to it. I'd rather stick > with QMI but I don't know how well the modem will cope with it so I need > to experiment.
I did stick with QMI, or at least the Qmi class. FYI, here's my patches: https://source.puri.sm/Librem5/ModemManager/commits/rah/sim7100-audio Feedback is welcome. I'm not submitting a merge request yet because the patches are on top of an older version of Aleksander's voice-fixes branch. The newer branch increases the version of a dependency, libqmi I believe. The newer dependency isn't packaged in Debian so to avoid more packaging work, I've stuck with the older branch. > My intention was to handle the audio completely outside of ModemManager. Again, this is what I've done. For your interest, here is a deamon called Hægtesse which can reliably make calls through a SIM7100 and a PulseAudio-supported headset. It just ferries data between the TTY and some PulseAudio streams but has to do lots of dances to keep things working reliably: https://source.puri.sm/Librem5/haegtesse From the README: "Probably the best place for this functionality would be a PulseAudio plugin which listens to ModemManager over D-Bus and configures itself according to ModemManager call audio meta-data. This functionality is still under development, however." Regards, Bob
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