Hi. I have an Alix 2d13 and using it with openwrt for more than 2 years as my router. All i have to say it simply ROCKS!
Since i have dsl disruptions in my area and i am loosing voice and data (Voip broadband), so i invested in a huawei 3g usb stick to provide me with Internet, voice and SMS. The usb stick has been unlocked and currently is on an Asterisk server to check its integrity, but i have only voice and sms.
I have knowledge on how to use the usb stick for Voice and SMS (2 out of 3 services) in an Asterisk, but i have not a clue on how to make all 3 services (Internet, voice, SMS) work. Ideally i would like to have all services from the same usb stick in my router (openwrt in Alix 2d13).