应用介绍: Call Defender, a FREE spam call blocking appthat has protected millions of users against malicious spam calls.CALLER IDENTIFICATION: Enjoy real-time caller identification! Know when a spam call is calling you at a glance, and simply BLOCK the number. Call Defender also shows the name of public or private organizations when they are calling you. Call Defender can identify over 500 thousand HK phone numbers which include hospitals, educational institutions and so on. The data comes from HKJunkCall whitelist, community, Internet, websites and number owners. We DONT upload the contact books of users.