How to detect HIDDEN CAMERAS in TRIAL ROOMS ????

In front of the trial room, take yr mobile and make sure that your mobile can make calls.....
Then enter into the trial room, and make a call. If u can't male a call, there is a HIDDEN CAMERA....!!!!!
...
This is due to interference of fiber optic during signal transfer...
Plz share it with all girls to save them and even with boys to save their sisters/friends/lovers.....
Don't feel shame to share this MSG. It's our duty....
In front of the trial room, take yr mobile and make sure that your mobile can make calls.....
Then enter into the trial room, and make a call. If u can't male a call, there is a HIDDEN CAMERA....!!!!!
...
This is due to interference of fiber optic during signal transfer...
Plz share it with all girls to save them and even with boys to save their sisters/friends/lovers.....

Don't feel shame to share this MSG. It's our duty....