Great video, thanks!
OK, I was looking exactly for a setup like this, as I’ve already worked with SIMx hardware before and usually is easy to find and order those chips online.
A few conclusions on this topic:
- Receiving calls is trivial with AT commands, I’ve already done this in the past on a MCU but I need to refresh my knowledge, if I don’t forget I will post how this can be done once I implement it;
- Nerves has official support for internet connectivity with vintage_net_mobile, however sadly it doesn’t officially support SIMx family of chips from the looks of README page. It could be also possible that this can be achieved with generic linux drivers as pointed here: VintageNet - A new network configuration library for Nerves - #6 by fhunleth
A part of the problem is out of the way, now the only part left is to investigate what would be the most optimal choice of the modem. @fhunleth mentioned Quectel BG96 and EC25 in the post above, but that post is from 4 years ago, maybe that is no longer the case.
