i validated the quectel EM06 modem (in my case -E version for europe) in MNT Pocket Reform, also for voice calls. i don't have the extra SAI audio lines wired up yet in our imx8mplus mezzanine card, but i can call the Pocket Reform on my phone and play DTMF tones and the modem recognizes those. i can also call my phone via ATD commands etc. (all of this i only tested manually with AT commands, it's still like in 1997)

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@mntmn forums.puri.sm/t/update-mar-25 if i send you a EM12-G would you like to give that one a try as well? I was never able to get it to work myself but maybe things have changed on the driver or kernel support side.

@goatwildernesscollective sorry, it would be interesting but i don't have enough time at the moment

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