1. From the home screen, tap Phone.
   
2. Enter the desired number using the keypad.
   
3. Tap the Call icon.
   
4. To answer an incoming call, swipe the green Phone icon to the right.
   
5. To reject an incoming call, swipe the red Phone icon to the left.
   
6. To reject an incoming call with a message, tap Reject call with message.
   
7. Visit the AT&T International Calling website for help making calls to or roaming in another country.