If you want to block a group of numbers that has same pattern then you can use a special number that can block all the numbers in that group. Example: In India all telemarketing calls start with +911... so to block all these calls use +911?????????
How to special numbers.
If you want to block a group of numbers that has same pattern then you can use a special number that can block all the numbers in that group.
Example: In India all telemarketing calls start with +911... so to block all these calls use +911?????????