Dangerous ! How do you know if someone recorded phone call without your knowledge

Heard about a lot of leaks of phone calls! Especially with the dawn of applications and smart phones have become such a simple matter for many it is sufficient that the message you apply the sly on the phone to be able not only to record phone calls, but also spy on your smartphone! .
In today's lesson I will explain you how to find out if he is recording phone calls without your knowledge, a very simple way by the application is available only in the US but you can download it from the link below.
Download the application:WireTap Detection (Anti Spy)