I was on a skiing holiday in Åre (Duved) in February 2011. The hotel provided me with a Telia's mobile broadband internet connection that uses a Huawei 3G radio with a SIM card. Here are steps to use the radio modem on Linux:
Install a program called wvdial
On Debian GNU/Linux, run 'apt-get install wvdial' as root. Here's a potential chicken and egg problem since you may need network for this. Maybe you can download the relevant deb packages from someone else's computer or can access the network otherwise somewhere (hotel?).
Run wvdialconf (as root)
Edit /etc/wvdial.conf (as root). You should set "Username" field to "3G", "Password" to "internet" and "Phone" to "*99#". Afterwards you would have a configuration file that looks like this:
[Dialer Defaults] Init1 = ATZ Init2 = ATQ0 V1 E1 S0=0 &C1 &D2 +FCLASS=0 Modem Type = Analog Modem Phone = *99# ISDN = 0 Password = internet New PPPD = yes Username = 3G Modem = /dev/ttyUSB0 Baud = 9600
Now you should be ready. You can setup network access by running wvdial > as root. The connection setup may take a minute.
Additionally, you can enable the extra bandwidth paid with the hotel connection by inserting the SIM card from the mobile broadband stick into a normal cellphone and sending the SMS provided in the Hotel's instructions: "4466 ladda ACCESSNUMBER"
Note, that ACCESSNUMBER given must be written without any spaces, although the receipt number is given in a form that has spaces.
I hope this is useful to someone.
Heikki Orsila <email@example.com>
Instructions written at 2011-02-17.