1. While on a call, swipe the white phone icon to the right to answer Call Waiting.
   
2. Swipe the white phone icon to the left to decline the incoming call.
   
3. While on a call, tap the Add call icon to start a conference call.
   
4. Enter the desired number.
   
5. Tap the green Phone icon to add the call.
   
6. Tap the Merge icon to begin the conference call.
   
7. Tap the red End call icon to disconnect.
   
8. To separate the call, tap MANAGE.
   
9. Tap the desired call to separate.