I should be interested in FreePBX Blacklist module, to use it to redirect calls for a small company . They just want an unknomn caller to be routed to normal incoming route, but a blacklisted caller to be routed to an IVR. Do you think that for a 6-8 incoming lines, FreePBX will be able to process about 10 000 numbers and toggle 6-8 simultaneous calls without a collapse. If this moduel is not designed for, tell me please.
That module is a very “skinny” overlay of the inbuilt asterisk “blacklist” function, it is tied into the dialplan as exactly that a blacklist for inbound calls, but:-
http://astbook.asteriskdocs.org/en/2nd_Edition/asterisk-book-html-chunk/asterisk-CHP-6-SECT-6.html
will show you how to do much the same with the sqlite3 astdb tables to redirect inbound calls (or outbound for that matter) as you see fit through a custom context.
And no, 10000 entries nor multiple concurrent calls will not have a noticeable effect on your server.