1. While on an active call, press the Volume keys to adjust the call volume.
   Note: When in 'Easy' mode, you can't mute a call, place a call on hold, create a conference call, or access advanced settings.
   
2. Tap Headset to connect to a Bluetooth headset.
   
3. Tap Mute to mute/unmute the microphone.
   
4. When the microphone is muted, the Mute icon will display in the Notification bar.
   
5. Tap Speaker to enable/disable speakerphone.
   
6. When speakerphone is active, the Speaker icon will display in the Notification bar.
   
7. Tap Add call to make another call.
   
8. Tap Keypad to display/hide the keypad.
   
9. Tap Hold to place the call on hold.
   
10. When a call is on hold, the Hold icon will display in the Notification bar.
    
11. Tap Unhold to resume the call.
    
12. Tap the Noise reduction icon to toggle noise reduction on/off.
    
13. Tap the Extra volume icon to toggle extra volume on/off.
    
14. Tap the Call sound icon to personalize call sounds.
    
15. To access additional options, press the Menu key.
    
16. Press the Home key to return to the home screen while staying connected to the current call.
    
17. To return to the call, swipe down from the Notification bar.
    
18. Tap the Call icon.
    
19. To hang up, tap End call.