The guide recommends socat but my Spitz doesn’t have that package installed by default and uses glmodem as its modem manager, rather than the standard openwrt Modem Manager. Would adding the socat package conflict with glmodem?
Does glmodem have its own version of socat that is accessible via ssh?
EDIT: After some more googling, found a mention of the gl_modem command:
gl_modem -B 1-1 AT /dev/ttyUSB2 ATI
I’m unclear what -B 1-1 does. The more basic command below also works.
gl_modem AT ATI
That sends the AT command “ATI”, other AT commands can be sent in that place via SSH