1. While on an active call, press the Volume buttons to adjust the call volume.
   
2. To enable speakerphone, select Speaker.
   
3. To mute your microphone, select Mute.
   
4. Select Bluetooth to connect to a Bluetooth headset.
   
5. Select the Dialpad icon to display the dialpad.
   
6. Select the Dialpad icon again to hide dialpad.
   
7. To make another call, select Add call.
   
8. To place the current call on hold, select Hold.
   
9. Select the Start key to return to the Start screen while staying connected to the current call.
   
10. To return to the call, select the Notification bar to open phone window.
    
11. To end a call, select End call.