Calling someone

Using FaceTime on your iOS device is easy. Just launch the FaceTime app (it’s green like the one for your normal phone), choose a contact to call, and select either Audio or Video.

You can also select a recipient from Contacts and then choose the FaceTime icon under the phone or the video camera to start either type of call.

You can use FaceTime to make and receive video calls from other people with the app.

Beware that video calls use more data than audio calls.

If you have limited data or connectivity is a problem you should try an audio call. 

You can use FaceTime to make and receive audio calls just like you would a regular telephone. Audio calls are particularly useful if you have limited data.