A boolean parameter for NoType:android/provider/ContactsContract$Contacts;Href=../../../reference/android/provider/ContactsContract.Contacts.html#CONTENT_STREQUENT_URI and NoType:android/provider/ContactsContract$Contacts;Href=../../../reference/android/provider/ContactsContract.Contacts.html#CONTENT_STREQUENT_FILTER_URI, which requires the ContactsProvider to return only phone-related results. For example, frequently contacted person list should include persons contacted via phone (not email, sms, etc.)