[Asterisk-Users] Caller-ID Block

[Daniel Salama]

Question: how can I block someone from calling us?

Sometimes we get crank calls into our office. We'd like to build a list 
of callers to be blocked. When they call, they should hear busy and 
then we hang up. We have about 100 DIDs routed to different contexts 
and I wouldn't want to have to manually edit all contexts. Is there a 
way to do something global to create something like a black list of 
caller IDs to block?

Thanks,
Daniel