BSNL STOP INCOMING CALL

All BSNL users-
Trick to STOP all Incoming Call

for Activate Dial *21*17010#
Outgoing Cal pssble bt Incoming Cal nt psble
-
Deactivate #21#

Secret Codes

FOR ALL MOBILES

-To restart=*#7780#
-s/w version=*#0000#
-ResetSecurityCode=*#7370925538#
- IMEI=*#06#
factory mode=*#987#
30pscall A&A=*110#