How to Enable and Use Facetime on iPhone 4

Note: Please ensure you and your recipient both have a reliable WiFi connection prior to establishing a call.

Enabling/Disabling FaceTime
1. Press the Home Button
2. Tap Settings
3. Tap Phone
4. Tap FaceTime to toggle ON or OFF

Making a FaceTime Call
1. Press the Home Button
2. Tap Contacts
3. Tap Desired Contact
4. Tap FaceTime

Alteratively
1. During a Voice Call
2. Tap Speaker to change to speaker mode
3. Tap FaceTime to upgrade the call to a FaceTime Session