1. While on an active call, to mute the call, select mute.
   
2. To unmute the call, select mute.
   
3. To put the call on speaker phone select speaker.
   
4. To turn off speaker phone, select speaker.
   
5. To view the keypad, select keypad.
   
6. To hide the keypad, select Hide.
   
7. Select contacts to view the contacts list.
   
8. Select the green Active call bar at the top of the screen to return to the call screen.
   
9. Select FaceTime, to convert the call to a FaceTime call.
   
10. To view the home screen while on a call, press the home button.
    
11. To return to the call screen, select the green Active call bar at the top of the screen.
    
12. To add a call, select Add call. 
    Note: For information about conference calls, see the Conference Calling tutorial.
    
13. To raise or lower volume, press the Volume buttons.
    
14. To end the call, select the End call icon.