What is a Blacklist? How do I bar unwanted calls?
Once you have activated the Call Filter service, the IVR will request you to choose an option for barring telephone number. Once selected, you will be asked to enter the desired digits of the number you wish to bar. To bar a mobile number of any telecom circle in India, just enter the ten digits of the mobile number. You may also enter zero before the number but the same is not compulsory. For non-mobile numbers, enter the STD code (beginning with zero) followed by the number. You can enter as many numbers as you wish to the Blacklist. Once your Blacklist is defined, the IVR plays your default announcement which your Blacklisted caller will hear when he/she calls you up.