- Begin by ensuring that FaceTime is turned on for your iPhone. Do this by tapping the Settings app on your home screen. What you do next depends on what version of the iOS you're running. On some versions of the iOS, scroll down to Phone and tap it. In other versions, tap on the FaceTime option. Move the FaceTime slider to On or green (depending on your version of the OS).
- While it used to be that FaceTime calls could only be made when the iPhone was connected to a Wi-Fi network (and phone companies blocked FaceTime calls over their 3G cellular networks), that's no longer true. Now, you can make FaceTime calls either over Wi-Fi or 4G/4G LTE. If you can, though, connect your iPhone to a Wi-Fi network before using FaceTime since video chats use a lot of bandwidth and Wi-fi doesn't count against your monthly data limit.
- FaceTime calls can also only be made to other FaceTime-compatible devices, including iPhones, iPads, iPod touches, and Macs. If the FaceTime icon has a question mark on it when you place your call, it may be because the person you're calling can't accept a FaceTime call for one of those reasons.
Once those requirements are met, there are two ways to FaceTime someone. First, you can simply call them as your normally would and then tap the FaceTime icon when it lights up after the call connects.
Alternatively, you can browse through your iPhone address book, find the person, tap on them, and tap the FaceTime button (it looks like a small camera) on their page in your address book.
Your FaceTime call will begin just like a regular call, except that your camera will turn on and you'll see yourself. The person you're placing the call to will have the chance to accept or deny your call by tapping an onscreen button (you'll have this same option if someone FaceTimes you).
If they accept it, FaceTime will send video from your camera to them and vice versa. Both a shot of your and the person you're talking to will be on screen at the same time.
- End a FaceTime call by tapping the End button on the bottom of the screen.