How do I block/unblock calls from a contact?

You can block a contact to prevent the caller from reaching your phone number (iOS app only). If a blocked caller tries to reach you, they will hear a "no longer in service" message. 

  1. Tap Contacts in the lower toolbar.
  2. Select the desired contact.
  3. Tap the Settings icon (three vertical dots).
  4. Tap Block Calls.

You can see a list of all blocked contacts under Settings > Blocked Numbers. This feature is not yet available on the Android app.