小鴨幹線 (香港廣告及詐騙來電攔截)

Dec 24, 2015

New function to recognize invalid "+" calls from outside Hong Kong

In response to rampant scam calls with "+"-prefix, new function was added to identify and notify users of whether an IDD number is valid, and, if so, its place of origin and type, using the latest metadata of global phone number formats. User can also choose to block invalid IDD numbers, while normal IDD calls would not be affected.

See http://blog.headuck.com/?p=95 for details.