free calling from reliance to other network.. free call trick

1000% working Trick to make call from reliance
 to othernetwork using reliance to reliance free
 (1)for this trick you need:-
 (i)two mobile phones with same service provider
 (like reliance or whatever You have) (ii)reliance to reliance talk in one simcard of
 (i) A= first simcard with reliance to reliance talktime
 (ii) B= second simcard (it dosen't matter either you
 have talktime or not) (iii)C= Ten digit mobile number which you want to
 (i) Dial *21*C# from B to activate call divert
 (ii) Now dial B from A
 (iii) Your call will automatically divert to C (iv) Hurrey! enjoy free calling to any operator until
 your relianceto reliance talktime is left
 (v) Now dial #21# from B to deactivate call divert
 (i) This trick can be used to any other operator like
 In airtel to airtel talktime In idea to idea talktime etc.(but not confirmed)
 (ii) Don't add +91 or 0 in C