Have you ever wanted to block a call into CUCM based on the calling party number? Well, unless you used H323 Gateways and did call blocking logic at the gateway itself, there was no way to do this natively in CUCM.
But in CUCM 8.0, there was a new feature added that enables an administrator the ability to add call filtering based on called party number. For more information, check out https://supportforums.cisco.com/docs/DOC-18367.
As the author of this document, I am interested your feedback.
Technical Marketing Engineer