Hanne's blog

To get the Huawei E180 3 modem provided by TDC to work on Ubuntu, one needs to get rid of the airprime module.

In /etc/modprobe.d/blacklist, add:
blacklist airprime

The APN is "internet" so wvdial.conf becomes:

[Dialer tdcpin]
Modem = /dev/ttyUSB0
Init1 = AT+CPIN=****  <-- this is my pin code

[Dialer tdc]
New PPPD = yes
Phone = *99#
Username = irrelevant
Password = irrelevant
Stupid Mode = 1
Dial Command = ATDT
Modem = /dev/ttyUSB0
Baud = 460800
Init2 = ATZ
Init3 = ATE0V1&D2&C1S0=0+IFC=2,2
ISDN = 0
Modem Type = Analog Modem
Init5 = AT+CGDCONT=1,"IP","internet"

and commands are

wvdial tdcpin
wvdial tdc


Thank you to http://ubuntuforums.org/showthread.php?t=796766.