Install DCOM 3g (Viettel) on CentOS

Source: cuongk6t.wordpress.com My Device: Huawei, model: E1550, HSDPA USB Stick. Step 1: Plug in device to your PC, open terminal console. Step 2: Check CentOS auto detect device as GSM modem by command: #dmesg In the Result of dmesg command, you must see some following line: GSM modem converter now attached to ttyUSB0 GSM modem converter detected GSM modem converter now attached to ttyUSB1 usbcore: registered new driver option Step 3: Install wvdial (w v d i a l ) – it’s require libwvstreams on dependency #yum install wvdial Step 4: Build configuration file for wvdial and save it to /etc/ #wvdialconf /etc/wvdial.conf Check the result message to make sure it success: “Found a modem on /dev/ttyUSB0 (or 1)” and “Modem configuration written to /etc/wvdial.conf” Step 5: Edit wvdial.conf file: #vi /etc/wvdial.conf Press I to edit this file, uncomment 3 line: Phone, Username, Password by remove “;” begin of lines. Add a new line after Init command (Init1, Init2…). If you have 2 Init, you must add Init3 in new line (if you have init3 already, you must add Init4….) Init3 = AT+CGDCONT=1,”IP”,”e-connect” P/s: e-connect is the APN name of your mobile provider, in this case, I use D-COM sim of Viettel so that I use: e-connect. Mobiphone is: m-wap. Vinaphone is: m3-world, username: mms, password: mms. Edit account informations Phone=*99# Username=’’ Password=’’ Note: Phone must is *99# (all of country) Username and password in this case is empty. You must add two symbol ‘ (single quote) after them. Ok, Press “Esc” key to exit edit mode of vi, Press “:” key, enter “qw” and enter to save file. Step 6: Connect to the internet with D-COM 3G #wvdial Please wait a minute, when you see some IP in your terminal, you are done. Try open new terminal and ping google dns to make sure you can connect to the internet: #ping 8.8.8.8 HAVE FUN. cuongk6t – Nguyen Quoc Cuong.