1. You Firstly activate the free SMS on your Airtel & than you will get 400 A2A free SMS. Now deactivate this service after 7 days & than again restart u next day. You get 1200 free SMS A2A.2. Message Setting -> Text Message -> Profile Setting & than change your Message Centre Number to +9810051905. works on Few Airtel numbers only. Enjoy free SMS....
