The follwoing is the method to activate free hello tune in airtel.but using this number you cannot select your own song but only what they provide.but any way you get a free hello tune.this is only for new members.only for 1 month
AIRTEL FREE HELLOTONE
(Activate)
dial
543211888 (toll Free)
(Deactivate)
Dial
543211808 (toll Free)
enjoy airtel hello tune!