Help needed with mobile broadband

Hi, I would like to set up a mobile broadband connection on my new Toshiba notebook. Unfortunately I couldn't find any information how to do this. The device is, according to lsusb: Bus 001 Device 008: ID 1199:9063 Sierra Wireless, Inc. and the provider is T-Mobile (Telekom). I'm not sure about the kernel modules, and I probably need some software to establish the connection. With an Ubuntu live system it works out of the box, but I certainly won't abandon Crux... Can anybody help? Thanks in advance, Bernd