How to activate/deactivate start/stop videocon caller tunes,hello tunes,dialer tunes.

ACTIVATION : Call 50001 @rs.3/min or sms CT ACT to 121 (toll free)

or

Dial *501# (toll free browsing). Rs 15 per tone download.

DEACTIVATION : To stop the caller tune service by sending a sms CT DCT to 50000. or call customer care.