No problem...
By the way, the simplified code is essentially what was used (and might still be used with FreePBX 12) for the blacklist...
I am not sure but I think if that code is still there in your FreePBX version you could might be able to directly call that code from a custom destination without needing to edit any custom files, you would only need to figure out what the name to use for the custom destination is...
The main difference between my solution and el_es' is that you won`t get the SIT tone (actually I think it's a possible destination but it won't play before the "no service' which is what most people would expect...)... Of course you can't easily handle the multiple language issue I have with the purely FreePBX solution..
The best bet would actually be for the devs to add this to FreePBX itself as one of the possible destinations... When I get a chance I might look at it and submit them a patch for this...
Good luck and have a nice day!
Nick