Are you referring to the ones from 2015 or so with
Russian titles? Those are the only ones I am aware of
Yes. There are few. Check out this one:
https://youtu.be/jw-63aOOPk0
how do you know that phone was running against an
Osmocom network [...]
I know the author. Also, you can see the logs of OpenBSC
on the background of the mentioned video.
The relation is simple: if phones like Mot C1xx
running
Motorola's original factory fw don't work with Osmocom
networks, [...]
In order to confirm, I just tested a Motorola C118 running
the original firmware with Osmocom-based network. LimeSDR-Mini
was used as PHY for OsmoTRX. Everything works fine, including:
SDCCH: SMS, USSD, other signaling
TCH/H: both HR and AMR codecs
TCH/F: FR, AMR and EFR codecs
Probably, the author of this topic has some problems
with codec / network configuration.
With best regards,
Vadim Yanitskiy.