How to Make Your Cell / Mobile Number Unreachable?


   
   We sometimes don’t want to receive calls at a particular 
time. But the caller understands that we are not receiving 
call. So make yourphone unreachable & the caller will 
thought that its a network problem. No need of removing sim 
card! Lets start.
   Go to Menu> Settings> Phone> Operator 
selection> Manual.Now your phone will search for 
available operators.
   Select any other network except your own network (i.e. If 
your r using Airtel, select vodafone in). You’ll get an error 
message ‘No network access’.
   Now look at the signal bar. It is empty! But don’t press 
back. If you press back, the phone will capture signal again. 
If any caller call you then, he will hear that your phone is out 
of network range!
   This trick works on almost every nokia s40 handset, hope 
will work on others phones.