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.