Anyway - how it works, a private number appears,the private numberdissapears straight to your default settings (be voice mail/or justhang straight up) 1. install 2. run 3. Close the app You're nowprotected from private numbers! *IMPORTANT* After hanging up on theprivate caller, the app has no control over your network provider,by this i mean if you hang up and they go voice mail, this willtoo.. No app not one has the power to change your mobile phonenetwork settings, not possible .. every single call blocker has thesame problem... Until the mobile/cell networks allow you officially(i know you can use codes and it sometimes works but that does notmean if it works in India it will work in the USA ... this appalong with every other blocker can't control what happens after thecall is ended...