1. To use conference calling, while on a call, tap Hold icon.
   
2. Tap Contacts.
   
3. Dial the desired phone number, then tap the Call icon.
   
4. Tap Merge calls to merge the calls.
   
5. With the desired number selected, tap Hold to place a call on hold.
   
6. Tap Manage members to disconnect one call.
   
7. Tap the Hang up icon to disconnect a caller.