1.Insert the 3G USB Stick Device to PC.
2.After the Device Detected run following command in terminal
wvdialconf
3.After modem was detected edit the /etc/wvdial.conf
gedit /etc/wvdial.conf
phone = *9***1#
username = vodafone
password = vodafone
4. Then issue following command at the terminal.
wvdial
5.Device Configured Successfully