In the “ANI blacklist” you can define caller IDs or area codes, which will not be routed to the defined routing destination / routing plan. You can choose for these caller-IDs between following options:
a) Reject call – the caller gets automatically a busy or fast busy signal and the call will be terminated
b) Announcement – an announcement will be played back to the respective caller and the call will be terminated
c) Named Routingplan – The call of the respective caller will be forwarded to a pre-defined “named-routingplan.