How to Block Collect Calls?

Don’t worry guys; there is a method available to block all those muft callers. Try following commands… and block all those persons who call on your number using your balance.

SMS following keywords to 900 if you do not wish to receive collect call requests

BR ALL Block all collect call requests.
UN ALL Unblock all collect call requests
BR To block a specific number
UN To unblock a specific number
BR LIST To get the list of Barred numbers

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