1. While on a call, tap Dialpad to display the phone keypad.
   
2. Tap Mute to mute the microphone.
   
3. While the microphone is muted, the Mute icon will display in the Notifications bar.
   
4. Tap Speaker to activate speakerphone.
   
5. While speakerphone is enabled, the Speaker icon will display in the Notifications bar.
   
6. Tap More to display additional in-call options.
   
7. Tap Hold to place the current call on hold.
   
8. While a call is on hold, the On-hold icon will display in the Notifications bar.
   
9. Tap Add call to dial a second phone number.
   
10. Tap Message to send a text message.
    
11. Tap Contacts to view your contacts list or call a contact.
    
12. Tap Less to collapse the call options menu and displayer fewer options.
    
13. Press the Home key to return to the home screen while staying connected to the current call.
    
14. Tap the Call icon to return to the call in progress.
    
15. Press the Volume keys to adjust in-call volume.
    
16. Tap End to hang up.