Hi!
I can only speak for Ubuntu Touch and Plasma Mobile, but we're using the QMI
interface provided by the EG25G. We had more trouble trying to use the AT interface than
it seemed worth working on. One problem was, indeed, having trouble receiving the RING
indication reliably. Another was trying to get WWAN set up correctly.
Ubuntu Touch messily applies QMI call patches to oFono in a branch on our GitHub
repository of it:
https://github.com/ubports/ofono/tree/xenial_-_edge_-_pine. I'll
send another reply once I know where Plasma Mobile gets its builds. Hopefully they've
got a bit cleaner commit log.
Thank you for the information. I assume... even if I fixed
modem<->ofono communication, there would be still nontrivial work
involved getting the audio to work... right?
You will have problems with the modem further than you're having
now, though: for one, it likes to fall off of USB every now and again when waking from
sleep. We're currently investigating this issue since all PinePhone operating systems
have devised workarounds that are far more complicated than the issue seems to warrant. If
you want to talk more PinePhone development, I recommend you join us at #pinedev on
freenode or #pine-dev:matrix.org
I can do irc.
Best regards,
Pavel
--
http://www.livejournal.com/~pavelmachek