1. While on an active call, press the Volume keys to adjust the volume.
   
2. Tap the Mute icon to turn mute on or off.
   
3. While mute is enabled, the Mute icon will display in the Notification bar.
   
4. Tap the Speaker icon to turn speakerphone on or off.
   
5. While speakerphone is enabled, the Speakerphone icon will display in the Notification bar.
   
6. To access the dial pad, tap the Dialpad icon.
   
7. To hide the dial pad, tap the Dialpad icon again.
   
8. To add a call, from the dial pad, enter Desired contact or number.
   
9. Tap the Call icon.
   
10. To place a call on hold, tap the Hold icon.
    
11. To access the home screen during an active call, tap the Home key.
    
12. To return to your active call, swipe down from the top of the screen and tap the Call.
    
13. To end a call, tap the End Call icon.