When Call blocking is turned On, notifications for certain calls are blocked, and you only receive the notifications you choose. You can choose to block notifications by feature or contact, and choose blocking all the time, or during a specific time period. 


Call blocking on Android phones

  1. From Start key Start, swipe left to Apps, and then tap Settings icon Settings.
  1. Swipe left or right to display System, and then tap call blocking.
  1. Configure options:
  • Block unknown calls: Tap the ON/OFF to turn the option On or Off. When turned On, your phone blocks calls from callers that have no caller ID.
  • Choose options for blocking by number or contact:
  • Tap add by keypad to enter a phone number, plus name or other criteria for blocking calls.
  • Tap add from contacts to choose contact(s), to block calls from their stored numbers.
  • Tap view blocked calls history to see calls that have been blocked.
  • Tap remove blocked numbers to delete blocking criteria.

 


These steps help to block of unblock a number on your iPhone 6


  1. From the home screen, tap the Phone icon.
  2. Tap the Recents icon.
  3. Scroll to the preferred contact and tap the Info icon.
  4. Scroll to and tap Block this Caller.
  5. Tap Block Contact.

Steps to unblock a number on your iPhone 6.

  1. From the home screen, tap the Phone icon.
  2. Tap the Recents icon.
  3. Scroll to a contact and tap the Info icon.
  4. Scroll to and tap Unblock this Caller.