When You Use This Code It Will Allows You To Cut The Phone Call From Anyone, But Yet You Can Still Use Your Data To Do Some Other Things, You Can Also Call & Send Text Message And Someone Will Text You, But Someone's Else Call, Will Not Enter Your Phone.
Here Is The Code (**21*00000000#)
For Airtel & 9mobile Users You Can Create Any Numbers After (**21*use any num#) When You Dial It Is Done, No Any Call Will Enter Your Phone.
To Canceling It Simply Dial (#21#).