Samsung Galaxy Round: Block and Unblocking Calls Using Default Features or Apps

*_Blocking Calls from a Phone Number:_* 1. While viewing the home screen, tap the "*Phone*" icon 2. Tap the "*Keypad*" tab if necessary 3. Press the "*Menu*" button and tap "*Call settings*" 4. Select "*Call rejection*" 5. Tap "*Auto reject mode*" and tap either "*Off*", "*All numbers*" or...