Recently I have playing around the network settings on my iphone 3G, I just noticed Airtel India has allowed Internet Tethering for iphone users using airtel connection. Internet Tethering allows you to browse internet on your computer using the gprs / edge connection of your iphone.
Here is how you can enable and use Internet Tethering on your iphone.
Go to Settings >> General >> Network and tap the option Internet Tethering [ It should be OFF by default ]
Under Internet Tethering you will have the option of connecting your iphone to your computer via USB or Bluetooth. So, you can either use Internet Tethering via USB or Bluetooth.
Turn Internet Tethering on and select the option which suits you. [ By Default It will support both USB and Bluetooth together ]
It will show blue colored bar a the top of the iphone screen
You will suddenly notice a new internet connection settings under network connections on your computer.
Note: Above procedure applies for Mac OS and Windows both.
That’s it – Once the new network connection is enabled and working you can browse internet on your PC or Mac system