For certain purpose, I get to play with celcom 3G using Huawei E220 modem. Interestingly they are many people getting this device working under linux, but it seems people may have it working for them but not for the others, and here's mine.
shell>sudo chown root huaweiAktBbo-i386.out
shell>sudo chmod +s huaweiAktBbo-i386.out
After you have done this, you can now configure wvdial, here's my humble configuration for impatient celcom 3G users, just edit your /etc/wvdial.conf.
Phone = *99***1#
Modem = /dev/ttyUSB0
Username = username
Password = password
ISDN = 0
New PPPD = yes
Baud = 460800
Init2 = ATZ
Init3 = ATQ0 V1 E1 S0=0 &C1 &D2 +FCLASS=0
Modem Type = Analog Modem
After you have configured it, just run this will do -
Done. Thanks to all the helpful links in internet that give me idea of how to get this working on Ubuntu 7.04.