1. To use conference calling, while on a call, tap Add call.
   
2. Dial the desired phone number, then tap the Call icon.
   
3. Once the second call has connected, tap Merge.
   
4. To manage callers, press the Menu key.
   
5. Tap Manage conference call.
   
6. To disconnect from a single call, tap the End icon next to the desired caller.
   
7. To disconnect from all calls, tap End call.