Free Missed call alert for Reliance, Airtel and BSNL

Hi friends, today i am going to tell you a trick by which you can activate free missed call alert in Reliance, Airtel and BSNL.. For this you have to do just one thing... Just go to settings> call setting> call divert> divert when out of reach.. Then your call with these number for your network.. For Reliance> +919025000700 for Airtel> +91657 for BSNL > 17010 notice that Reliance missed call alert may not possible when your balance is low than 50 paise.. So put your balance above than 50 paise..though it will not deduct your balance.. I am not sure about Airtel.. Try it and enjoy.