Configure Nokia N900 with BSNL 3G/GPRS

There is no easy or automated way to configure GRPS in N900. You have to manually type in the settings.

Send an SMS to 58355 with the text "NOKIA N900 ". Enter pin "1111" to save the settings.
Unfortunately I was not able to find the change connection(GPRS) option anywhere. So let's do it the hard way. Once all settings are saved. I got the default connection as BSNLWAP. Let's proceed and modify this to use 3G.

1. Click on the top left "Menu"  to bring the Main Menu. 
2. Now tap on the "Settings" to bring up the settings menu.
3. Scroll down and tap the "Internet Connections" icon.
4. Tap the "Connections" button.
5. Select the "BSNLWAP" and then tap the "Edit" button  to bring up the Connection Wizard. 
6. Change the Name BSNLWAP to "bsnl_internet" and tap "Next" button to continue.
7. Enter "gprssouth.cellone.in" in Access point name and move down to next field.
8. Enter "ppp" in User name and leave others blank and tap on "Next" button to Continue.
9. Click Finish to Save and exit the wizard.
10. Click "Done" to come to Internet Connections.
11. Preferably Leave the "Connect Automatically" to "Any Connection" and Enable "Swtich to WLAN when available" to swtich to your WLAN when available automatically.
12. Click Save to close the menu and Restart the N900
13. Try the new connection in browser.