Windows phone can be used to create Wifi hotspot for using mobile data connection on other devices. Wifi hotspot in Windows phone is known as internet sharing.
How to set it up
- Go to Start -> Settings -> Internet Sharing
- Slide Sharing button to ON position
- Open Setup. Change your broadcast name( Name you will use to identify your Hot Spot on other devices) if you want. In Security Type select Password required (WPA2). Provide password you will use for connecting other devices.
Now your devices is ready to allow other device to share its internet.