Airtel - 100% Free Missed Call Alert

Hai guys,iam now with a beautiful trick how to hack airtel's missed call alert service.

1. First take your phone and type *888*11# then press call button.
2. Then press 1 and send.
3. For confirmation press again 1 and send.
4. You will recieve message with missed call alert is activated on your phone.

NOTE:-This trick is tested in kerala.So please share if this trick works in your region through comments.