Reliance Netconnect usb card supports only the Windows 2000/XP operating system. But, getting it to work on any Linux box is also not as difficult as it’s made out to be. Although, I tested the method on Fedora Core 6/7 but the steps outlined below would work on any other Linux Distribution as well.
Step 1 : Login on to system as root user.
Step 2 : Check that your card is being recognized by the system.
# cat /proc/bus/usb/devices
T: Bus=02 Lev=01 Prnt=01 Port=05 Cnt=02 Dev#= 4 Spd=12 MxCh= 0
D: Ver= 1.01 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=16 #Cfgs= 1
P: Vendor=12d1 ProdID=1001 Rev= 0.00
S: Manufacturer=Huawei Technologies
S: Product=Huawei Mobile
S: SerialNumber=HUAWEI EC3X1
Note down the vendor & ProdID from the output.
Step 3: Now add the proper modules by running
# modprobe usbserial vendor=0x12d1 product=0x1001
Step 4 : Generate the wvdial.conf
# wvdialconf /etc/wvdial.conf
Step 5 : Edit the wvdial.conf file
# vi /etc/wvdial.conf
Edit the entries of wvdial.conf as Phone number=#777
Add your number in the user name & password field.
Step 6 : Initiate the wvdial application
# wvdial
Note down the IP addresses of assigned name servers from the output.
Step 7 : Edit the resolv.conf file
# vi /etc/resolv.conf
Add the following lines to the file & save the file.
search localhost.localdomain
nameserver a.b.c.d
nameserver e.f.g.h
Fill in the IP addresses of name servers from the details noted earlier.
Step 8 : Disconnect the connection by pressing ctrl+c and redial the Connection.
Now, feel free to fire your favorite browser & get going.Leave a comment if u have any difficulty implementing this on your Linux box. Happy Surfing 🙂
Scribbles of a Chaotic Mind 
Can you post me the contents for /etc/wvdial.conf file ?
–> WvDial: Internet dialer version 1.60–> Cannot get information for serial port.–> Initializing modem.–> Sending: ATZOK–> Sending: ATQ0 V1 E1 S0=0 &C1 &D2 +FCLASS=0OK–> Modem initialized.–> Sending: ATDT#777–> Waiting for carrier.ATDT#777CONNECT–> Carrier detected. Starting PPP immediately.–> Starting pppd at Thu Feb 5 08:02:39 2009–> Pid of pppd: 8326–> Using interface ppp0–> pppd: J[7f]–> pppd: J[7f]–> pppd: J[7f]–> pppd: J[7f]–> Disconnecting at Thu Feb 5 08:03:01 2009–> The PPP daemon has died: A modem hung up the phone (exit code = 16)–> man pppd explains pppd error codes in more detail.–> Try again and look into /var/log/messages and the wvdial and pppd man pages for more information.–> Auto Reconnect will be attempted in 5 seconds–> Cannot open /dev/ttyUSB0: No such file or directory–> Cannot open /dev/ttyUSB0: No such file or directory–> Cannot open /dev/ttyUSB0: No such file or directory–> Disconnecting at Thu Feb 5 08:03:01 2009 when i give cmd wvdial i see this plzz help
Hello Sir I Am using Kubuntu 8.04 and when i give the command cat /proc/bus/usb/devices i get no such file or directory but my usb modem is connect plzz help thankz in advance !!