I love Norton products but there is a glitch with this one, Norton Security and Antivirus by NortonMobile. The call blocker on this app is really bad… When a blocked number calls and I am on the phone with a call it not only blocks the caller it hangs up the call that you are on… Is there a bug fix for this? I have a ZTE Warp Sync. Because other than that I ready love this app…