Airtel GPRS on LINUX with Nokia Phone

If you have an Airtel connection and GPRS activated(mobile office) and you want to connect to the net just do these steps to connect to the net… (Thanks to max_knr for helping me with this)

1. Install wvdial.
2. Open terminal and type wvdialconf. This searches for the modem and writes a config file to the /etc/wvdial.conf.
3. fire up kate /etc/wvdial.conf and paste the following code replacing the orginal code.

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

4. save and exit kate.
5. type wvdial on the terminal to connect to the net.(the following code is obtained)

cyriac@T3rminal0:~$ wvdial
WvDial<*1>: WvDial: Internet dialer version 1.56
WvModem<*1>: Cannot get information for serial port.
WvDial<*1>: Initializing modem.
WvDial<*1>: Sending: AT+CGDCONT=1,"IP","airtelgprs.com","",0,0
WvDial Modem<*1>: AT+CGDCONT=1,"IP","airtelgprs.com","",0,0
WvDial Modem<*1>: OK
WvDial<*1>: Sending: ATQ0 V1 E1 S0=0 &C1 &D2 +FCLASS=0
WvDial Modem<*1>: ATQ0 V1 E1 S0=0 &C1 &D2 +FCLASS=0
WvDial Modem<*1>: OK
WvDial<*1>: Modem initialized.
WvDial<*1>: Sending: ATDT*99#
WvDial<*1>: Waiting for carrier.
WvDial Modem<*1>: ATDT*99#
WvDial Modem<*1>: CONNECT
WvDial Modem<*1>: ~[7f]}#@!}!} } }2}#}$@#}!}$}%\}"}&} }*} } g}%~
WvDial<*1>: Carrier detected. Starting PPP immediately.
WvDial<Notice>: Starting pppd at Wed Dec 19 22:18:53 2007
WvDial<Err>: Warning: Could not modify /etc/ppp/pap-secrets: Permission denied
WvDial<Err>: --> PAP (Password Authentication Protocol) may be flaky.
WvDial<Err>: Warning: Could not modify /etc/ppp/chap-secrets: Permission denied
WvDial<Err>: --> CHAP (Challenge Handshake) may be flaky.
WvDial<Notice>: Pid of pppd: 7870
WvDial<*1>: Using interface ppp0
WvDial<*1>: pppd: (�[06][08]��[06][08]
WvDial<*1>: pppd: (�[06][08]��[06][08]
WvDial<*1>: pppd: (�[06][08]��[06][08]
WvDial<*1>: pppd: (�[06][08]��[06][08]
WvDial<*1>: local IP address 117.97.47.9
WvDial<*1>: pppd: (�[06][08]��[06][08]
WvDial<*1>: remote IP address 10.6.6.6
WvDial<*1>: pppd: (�[06][08]��[06][08]
WvDial<*1>: primary DNS address 202.56.250.5
WvDial<*1>: pppd: (�[06][08]��[06][08]
WvDial<*1>: secondary DNS address 202.56.250.6
WvDial<*1>: pppd: (�[06][08]��[06][08]


5. to disconnect press Ctrl+c

Caught signal 2: Attempting to exit gracefully...
WvDial<*1>: Terminating on signal 15
WvDial<*1>: pppd: (�[06][08]��[06][08]
WvDial<*1>: Connect time 632.4 minutes.
WvDial<*1>: pppd: (�[06][08]��[06][08]
WvDial<*1>: pppd: (�[06][08]��[06][08]
WvDial<*1>: pppd: (�[06][08]��[06][08]
WvDial<*1>: Disconnecting at Thu Dec 20 08:51:18 2007
This method is found working on Nokia phones and motorola phones..