To block calls and text messages from all contacts except the allowed ones:
On the quick launch panel in Kaspersky Internet Security's main window, tap Call & Text Filter > Filter rules.
In the Filter rules screen, tap Allowed contacts.
Create a list of allowed contacts. To do this, on the quick launch panel in the main window of Kaspersky Internet Security, tap Call & Text Filter > Allowed contacts.
If necessary, allow calls and text messages from contacts in the device phonebook:
In the main window of Kaspersky Internet Security, tap > Call & Text Filter.