How to Use an IPhone to Connect As a Modem

Updated March 23, 2017

The Apple iPhone is a popular smartphone with many useful features. One feature of the iPhone is that the device may be used as a tethered modem for a PC or laptop. Using the iPhone dock-connector-to-USB cable, the iPhone will serve as a dial-up modem for a computer. If the iPhone is using a 3G connection, calls may be made and received while the iPhone is enabled as a modem. To use the iPhone as a modem, the iPhone must be configured to act as modem. Next, a connection is created for the iPhone on the computer. Finally, the connection is made and tested. The iPhone has automated many of these functions, so using the device as a modem may be configured in just a few easy steps.

Click “Settings” on the iPhone main menu.

Select the “General” option.

Select “Networking.”

Select “Internet Tethering.”

Move the switch to the “On” position to turn on Internet Tethering.

Plug the dock-connector-to-USB cable into the iPhone and then into an available USB port on the computer. The iPhone is now configured and ready for a new connection to be created on the computer for the device. Often, the new connection will be created automatically. However, if a manual configuration is necessary, see the next section.

Click the Windows “Start” button and select “Control Panel.”

Click the “Network and Sharing Center” icon.

Click the “Set up a Network or Connection” link.

Select the “Set up a Dial-Up Connection” option.

Select “iPhone” from the list of available modems.

Click the “Connect” button to save the new connection and activate the iPhone modem connection. The iPhone will emit a blue glow when connected as a tethered modem.

Test the connection by opening a web browser on the Internet.

Things You'll Need

  • Dock-connector-to-USB cable
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About the Author

Tammy Clevenger works in the I.T. industry while maintaining creative outlets through film making, writing and audio production. She is a published academic author and is an accomplished and certified Project Management Professional.