SMS reception while online
Wanting to be able to use gnokii while I have a connection open with ModemManager, I created the following udev rules in /etc/udev/rules.d/98-pcfe-modem.rules
what it does
This allows gnokii to talk to /dev/UMTS-control because D_MM_DEVICE_IGNORE is set. Thus when my provider sends an SMS telling me I have exceeded my allocated data volume (and am being downgraded to 64kbit/s, wich is how I’d notice something needs taking care of), I can read the SMS with
(adjust 0 0 to the SMS(es) you want to retrieve)
If need be, I can reply to buy another block of data at full speed. All this without taking my UMTS data connection down.
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In April 2013 I started using a Vodafone UltraCard , one of the side effects of this is that I have to choose which of my SIM cards receives SMS. The one in the laptop is not the one. So I no longer use the tip above.