How to Deactivate DND (Do Not Disturb) Service for your Airtel Number?
You can deactivate or cancel from Airtel DND (do not disturb) service through deregistration process. Once you stop the DND service, you will receive unsolicited calls and messages from the telemarketers. You can cancel/deactivate the service,
→By sending an SMS to 1909
→By dialling the toll free number 1909