Free Missed Call Alert in Airtel
1]Go to settings.
2]Go to call setting.
3]Go to call divert then out of reach.
4]Then activate it to another no:
»Mumbai: *62*+91560#
»Rajastan: *62*+91569#
»Maharastra: *62*+91675#
»TamilNadu: *62+919894035100#
»Kerala: *62*+91567#
ENJOY