1. While in-call, swipe Accept to the right to answer a call waiting.
   
2. To view call waiting options, tap Options.
   
3. To switch calls, tap the Swap icon.
   
4. Tap the Join icon to begin a conference call.
   
5. Tap the Conference field to access conference options.
   
6. Tap End All to end the conference call.
   
7. Tap the desired call to end. Tap Members to end a specific call.
   
8. Tap the desired End call icon.