ModemManager and 3G data connections

[Aleksander Morgado]

Hey Karoline,

> Hi there, I'm running a quite old ModemManager 0.4 and I'd like to use
> it for connecting to a 3G data network. I'm not too sure if that is
> possible and I couldn't find any suitable documentation on this topic.
> Can anyone give me any advice on this matter? Pointers to documentation
> is also very welcome! In the case of it not being possible to use 3G
> with version 0.4 - can anyone point me to documentation on how to use
> ModemManager to connect to 3G with a later version? That would be really
> helpful.
> 
> In particular, I'm talking to ModemManager programmatically using the QT
> DBUS API. It seems that in 0.4 certain functions, like GetIP4Config()
> are not implemented. I get an "unsupported operation" error back. I get
> the same errors for SetAllowedNetworkMode().
> I have already managed to register my device to the network (it is a 3G
> SIM) and I get registration information back from ModemManager. But I
> cannot connect with it any further - in particular, in order to start a
> data connection, I do need an IP address and I don't quite understand
> how to go about this. Any help is greatly appreciated!

The latest stable ModemManager is 1.0.x, which comes with an improved
API, see:

http://www.freedesktop.org/software/ModemManager/api/latest

and:

http://www.freedesktop.org/software/ModemManager/libmm-glib/latest


-- 
Aleksander