And about localizedCallerName, the quick help says "By default, the system automatically provides a localized caller name using information like the user’s contacts based on the supplied caller identifier. You can set this property to override the system-provided value. But it never overides a found native contact...

And about localizedCallerName, the quick help says "By default, the system automatically provides a localized caller name using information like the user’s contacts based on the supplied caller identifier. You can set this property to override the system-provided value. But it never overides a found native contact...