S55 : Something like a keep awake trigger via AT-command, if missing -> turn off

[maulwurf]

Hello my friends,

does someone have any idea for the issue below?

I want to turn off the S55 if there were no data communication between the last e.g. 5 minutes.

Like an trigger which keeps the phone awake.

Or an alert which I shift each 4 minutes,
or a countdown.


Hope someone can help me.

Best regards,
maulwurf