Mine also Huawei-USB modem,works fine in Ubuntu after some twekening,but for fedora..no success yet.
It has been detected in /proc/bus/usb/1,2,3,4
I don't know how to cinfigure to dial.
Whenever I use wvdial hsdpa in console- dialer not found error messege comes out.
I thing ppl in Europe more inclined to Ubuntu.