GSM Power off

Michael 'Mickey' Lauer mickey at
Mon Feb 23 20:33:20 CET 2009

Am Montag, den 23.02.2009, 22:27 +0300 schrieb Paul Fertser:
> Michael 'Mickey' Lauer <mickey at> writes:
> >> > 	- echo "AT at POFF" >/dev/ttySAC0
> >> 
> >> This is supposed to ask modem firmware to power off itself. Was
> >> necessary because GTA01 has no physical power switch. I don't know
> >> exact results of this command though.
> >
> > IIRC it issues a controlled shutdown including deregistration from the
> > network and shutting down RF.
> But is it really necessary? One can as well suddenly go out of
> coverage without any deregistrations. Does it really matter for the
> network?

Probably not, still I think it's preferred to "pulling the plug" from
the modem.


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