To block calls and text messages from blocked contacts and allow calls and text messages from allowed contacts:
On the quick launch panel in Kaspersky Internet Security's main window, tap Call & Text Filter.
In the Call & Text Filter settings window, tap Filter rules and select Standard filtering mode.
Create a list of blocked contacts. To do this, on the quick launch panel in Kaspersky Internet Security's main window, tap Call & Text Filter > Blocked contacts.
Create a list of allowed contacts. To do this, on the quick launch panel in Kaspersky Internet Security's main window, tap Call & Text Filter > Allowed contacts.
If necessary, turn on additional filtering settings. To do this, in the Call & Text Filter settings window:
Allow calls and text messages from all contacts in the device phonebook by selecting the Allow contacts checkbox.
Block text messages from phone numbers that contain letters by selecting the Block non-numeric numbers checkbox.