This is the way how you can use Huawei e1550 in sri lanka Dialog with wvdial.

1.download and click following packages

libwvstreams4.6-base_4.6.1-1_i386.deb

libwvstreams4.6-extras_4.6.1-1_i386.deb

libuniconf4.6_4.6.1-1_i386.deb

wvdial_1.60.3_i386.deb

gnome-ppp_0.3.23-1ubuntu2_i386.deb

2.type in terminal and edit following 2 files

sudo wvdialconf /etc/wvdial.conf


sudo gedit /etc/wvdial.conf




[Dialer Defaults]
Init1 = ATZ
Init2 = ATQ0 V1 E1 S0=0 &C1 &D2 +FCLASS=0
Stupid Mode = 1
Modem Type = Analog Modem
Phone = *99#
ISDN = 0
Password = internet
New PPPD = internet
Username = internet
Modem = /dev/ttyUSB0
Baud = 9600

sudo gedit /etc/udev/rules.d/15-huawei-e1551.rules


SUBSYSTEM==”usb”,
ATTR{idProduct}==”1446″,
ATTR{idVendor}==”12d1″,
RUN+=”/lib/udev/modem-modeswitch –vendor 0x$attr{idVendor} –product 0x$attr{idProduct} –type option-zerocd”


3.type in terminal


sudo wvdial hsdpa