The use of smartphones as modems is not exactly new technology and there are plenty of models out there that are capable of doing this. The iPhone is not the first phone to offer this option, so it’s not something innovative or very hard to use.
The tethering process allows you to use your phone’s data plan to connect a PC or a netbook to the Internet. Its advantage is that you don’t need WiFi networks or modems to get online when you’re in remote areas. As long as your phone has access to the Internet, the same goes for your other equipment, with the help of the tethering.
Not that may people knew about it before the Iphone started offering this option, but now there are a lot of users out there that benefit from the iPhone 4 tethering. In the past, this was something that mostly corporate users used, but since the Internet costs are going down for mobile users, everyone has access to tethering, including travelers, office workers and even students.
You can make the iPhone act as a tethered modem by connecting it with Bluetooth or USB cable to a computer. The first thing you have to do is to update the software on your phone. To do that, use iTunes and use the button which checks for updates.
The next step is to go to the General settings area, then to Network and finally to Internet Tethering. Activate the tethering feature if you want to use it.
If you want to do it via USB, use a cable to do the connection between the computer and the iPhone. If you’d rather use Bluetooth, you can do that as well. It’s up to you the method you use to access the Internet connection. Once your computer is connected, you can still make phone calls or receive them, without disturbing the Internet connection.