Tele2 Mobile Internet
Tele2 in Croatia offers prepaid mobile Internet access. The USB device is Huawei E180, even though lsusb shows it to be E220. Either way, this device is supported under Linux. I have yet to figure out how to add credits without using Windows XP.
To configure device you'll need the following data:
All other fields in NetworkManager connection editor should be left as is, without any changes.
Note that in the Linux kernel, starting with version 2.6.26, there is nozomi driver included.
This document describes setup procedure for Vodafone Mobile Connect UMTS+EDGE Card. More specificaly, it describes setup procedure for VIP, i.e. national ISP provider in Croatia with user account on CARNet (Croatian Research Network). Still, some parts are quite generic.
Note that there might be multiple versions of this card each of which can be distinguished by first two letters of the serial number. Serial number on my card has NZ as the first two letters.
In short, card works. But there is no driver in kernel so you'll have to download and compile driver for your self. It is not difficult task. There is a driver provided by manufacturer, it can be found on the following URL. The manufacturer's version works on both linux kernel versions 2.4 and 2.6, and also does not work on PowerPC or 64-bit versions of Linux. In those cases download modified version. Now, modified version doesn't work on linux kernel 2.4 because I don't have any interest in doing so.
So, download archive into some subdirectory, say it's called nozomi.
Next thing you have to do is to compile driver. It's easy task, just do make in directory where nozomi.c is. And, after compilation is done insert the module into the kernel.