Blocking all contacts except allowed contacts

To block calls and text messages from all contacts except allowed contacts:

1. Tap > Call & Text Filter.
2. In the Call & Text Filter settings window, tap Filter rules and select Allowed contacts mode.
3. Create a list of allowed contacts. To do this, tap Allowed contacts and select what you want to allow and from which contact.
4. If necessary, allow calls and text messages from contacts in the device phonebook. To do this, select the Allow contacts checkbox.

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