When using wvdial for connecting to Internet through a Airtel gprs, with a gprs enabled mobile, if the wvdial program continuously tries connecting and fails …. Add the following line in the /etc/wvdial.conf file

Init3 = AT+CGDCONT=1,””,”airtelgprs.com”

where airtelgprs.com is the accesspoint of Airtel

Hence the etc/wvidal.conf will look like

[Dialer Defaults]
Init3 = AT+CGDCONT=1,””,”airtelgprs.com”
Init1 = ATZ
Init2 = ATQ0 V1 E1 S0=0 &C1 &D2 +FCLASS=0
Modem Type = USB Modem
ISDN = 0
New PPPD = yes
Phone = *99***1#
Modem = /dev/ttyACM0
Username = ” “
Password = ” “
Baud = 460800

For connecting to Internet through Airtel GPRS, proceed the following steps

Step 1: use the command wvdialconf to configure the modem

wvdialconf /etc/wvdial.conf

step 2: If the previous step is sucessfull, the model of mobile will be displayed…

Edit the file /etc/wvdial.conf to change the following lines to (remove the semicolons in front)

Phone = *99***1#
Username = ” “
Password = ” ”

This dialup number works only for Airtel India. May differ accordingly for other opperators.

step 3: use wvdial command to connect

wvdial /etc/wvdial.conf

This will connect giving the Primary DNS, Secondary DNS, Local IP, Remote IP, if successful.

Enjoy Surfing.. This same procedure is to be followed even for connecting through any other dialups, using internal or external modem in the PC