Hi people, I just logged in to share how I managed to make this damn thing work. It's not the best solution out there (yet), but I have to share it before I lose momentum and interest.

My modem is ZTE MF622 HSDPA Mobile Modem from THREE Mobile UK network. I have Debian Linux. Should work with Ubuntu and other derivatives without too much trouble.

I followed the instructions posted by zaurus6k on eeepc forum: http://forum.eeeuser.com/viewtopic.p...100536#p100536

So: check for usbserial module in your kernel (/boot/config-yourkernel or by zgrep /boot/initrd-yourkernel), go to step 4) if you have it

The difference is, in step 4) you give different parameters:

4)
sudo modprobe –r usbserial
sudo eject /dev/sda ( the cd with "Default OS" drivers, I prefer to unmount it first )
sudo modprobe usbserial vendor=0x19d2 product=0x0001 (this is the infamous MF622 modem )
sudo dmesg|grep –i ttyUSB (not necessary but makes sure the driver loaded correctly, you should see ttyUSB0 for example)
NOTE: as in "Default OS", when you run a control program, you need to wait about 30-60 seconds after ejecting CD before modem becomes available.
NOTE2: modprobe -r usbserial and modprobe usbserial vendor=0x19d2 product=0x0001 are possibly unnecessary. This should achieved by adding correct kernel parameter or compiling usbserial as a module and adding line "usbserial vendor=0x19d2 product=0x0001" to /etc/modules. Please, correct me if I am wrong.

Then you go setting up your favorite dialling program. I use wvdial. This again is something found on the internet ( http://ubuntuforums.org/archive/index.php/t-665332.html )
Contents of /etc/wvdial.conf, change owner to root and read access to anyone

[Dialer Defaults]
Phone = *99#
Username = user
Password = pass
Stupid Mode = 1
Dial Command = ATDT

Modem = /dev/ttyUSB0
Baud = 460800
ISDN = 0
Modem Type = Analog Modem
Init2 = ATZ
Init3 = ATE0 V1 &D2 &C1 S0=0 +IFC=2,2

Now, invoke wvdial and you have internet connection, that's utterly unusable.

Disconnect. For some strange reason the THREE assigns 4.2.2.4/3 as DNS. They DON'T work. "Default OS" shows WINS servers being used, this may be the hint to correct name resolution, but I have no idea about that.

I'm using OpenDNS for now, but they are slooooow. I'll try to find something faster later. This solution comes from http://gentoo-wiki.com/HARDWARE_HUAW...EM#DNS_problem

Edit /etc/resolv.conf, put those lines close to the top.
#Open DNS server
nameserver 208.67.222.222
nameserver 208.67.220.220

This propably won't work permanently (as resolv.conf is modified with each new connection), but I don't know where Debian hides his counterparts of gentoo's /etc/conf.d/net and /usr/ppp/peers/.

Now, I didn't go as far as making an udev script to automate this procedure. Everything is done manually.
Maybe one day I will go further with this, but now I have another things to work out. Hey! I went through patching and adding custom DSDT to my initrd! Forget kernel recompilation.

I hope this helps some people out there.