BSNL and MTNL users can activate Do Not Disturb (DND) service to get rid of unwanted telemarketing calls on their phone numbers. After activating this service, they will stop receiving those calls at that number. You can activate do not disturb service in two ways. They are call and SMS.
How to activate DND service through SMS on BSNL or MTNL number
First you need to send START 0 to 1909. By doing this, full do not disturb service will be activated on your BSNL or MTNL number. BSNL or MTNL users can also start Do Not Disturb (DND) service on their number through phone call or SMS.
How to activate DND service through a call on BSNL or MTNL number
To start the Do Not Disturb service through calling, you must call 1909 and then follow the instructions mentioned. By doing this, this service will be started on your BSNL or MTNL number.
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