Airtel front query tricks for blocked sim

friends,
huraaa.   again found by me working tricks for airtel.
for new members it should be helpfull. airtel data again working
with resume suport and its unlimited. so enjoy free internet 
on ur mobile .
here is settings below.
APN=airtelgprs.com
PROXY=80.239.242.253
PORT=80
no9w open opera handler (any version ) and 
put frontquery=airtel.in/data@ or airtel.in/freezone


block sim user try this fq. I think it should work with block sim too.