Thanks Justin,
The issue is that I don't want to use the sleep mode but just to be able to receive an SMS when the ignition cable is supplied with 12V (as alarm, to be informed in case somebody has switched on the engine without my knowledge). So the modem shall not go in sleep mode for any reason, but I need to use the ignition cable to trigger the "ignition" log event and receive the SMS.
Is there a way to enable the ignition detection without activating the sleep mode?
Many thanks