Like the previous flagship, the Samsung Galaxy S5 also has the capability to block calls from a certain phone number. Here's how you do it: Blocking a Number From the Home screen, tap the Apps icon. Tap Settings and scroll to APPLICATIONS section. Tap Call , and the Call Rejection . Tap Auto reject list and the Create . Tap the Contacts icon. You can enter the phone number you want to block manually, or you can choose Match criteria option: Exactly the same as (set as default), Starts with , Ends with , and Includes . Tap Save . To search for the number to block tap the Contacts icon. Tap Logs or Contacts . Tap the number to reject or contact to add to your reject list. Tap Save .