Wireless Modem Configuration for UTL in Ubuntu

First check that your device is supported in Ubuntu. That is once you've inserted the USB device, you should get a
/dev/ttyUSB0 device
loging in root
using
sudo -s
password
then write
$ ls /dev/ttyUSB*
If the result is
/dev/ttyUSB0 , then ur lucky mate.
then u need to install wvdial by internet
apt-get install wvdial

Now you have to modify the /etc/wvdial.conf file. In terminal do
$ gksudo gedit /etc/wvdial.conf

here is how my file looks like (for UTL CDMA)
[Dialer Defaults]
Modem = /dev/ttyUSB0
Baud = 230400
Init1 = ATE0
#Init2 = AT$PBTYPE=1 RPTCON=1 MTRPTTYPE=3 SMSRUIM=0 SMSTYPE=1
Init3 = AT+CTA=0
Init4 = ATEOV1
Init5 = AT
Init6 = ATS0=0
ISDN = 0
Modem Type = Analog Modem
Phone = #777
Username = 01urphonenumber@utlnepal.com
Password = 01urphonenumbermyphonenumber
Stupid Mode = 1
New PPPD = yes

save it and close
then dial
if u are in root then
wvdial
if u are in user
sudo wvdial
enjoy it