I've been having a look at the recent LTE atom. I've noticed
no vendor-specific parameter when registering it. I think we might have
some problem with the atmodem driver as in the
AT+CGDCONT=<context-id>,... command, the context-id starts from 0 on
some modems and from 1 on other ones (I won't denounce gemalto).
Hah, that was obviously a mistake. Not sure who let that past review
Anyway, it is fixed now upstream.