As I commented on Issue #99, I created the problem with SIMCOM not
powering off because I had excluded CONFIG_OVMS_COMP_MAX7317 from the
config and the power to the SIMCOM is controlled through the MAX7317
chip.
Would it make sense in Kconfig for config OVMS_COMP_MODEM_SIMCOM
to depend upon OVMS_COMP_MAX7317?
-- Steve