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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
This Great Document Dan Well Done
so this feature once you match a Translation pattern with the route next hop by calling party the translation wil look into a matching TP pattern with the source calling number ?
Correct, the calling party number at the time of the TP match that has route next hop by calling party, will be used as the called party essentially to pick the next destination.
I tried implementing this on CUCM 8.6.2 and and I am able to block calls based on calling number and route all other calls excpet for the calls without caller ID. They still get blocked even though I created a blank translation pattern exactly like the ! translation pattern.
As author of this document, I am interested in the issue you are seeing. The NULL translation needs to be in the same partition as your blocked patterns. Based on how digit analysis works, if a calling party number is present and does not match a blocked pattern, it should match the ! pattern and route. If there is no calling party number, then digit analysis should match the <NULL> pattern and route the call. With that said, make sure the ! and <NULL> translations look the same (partition and CSS).
If you have verified this, please get a CCM SDI capture of an inbound call and send me the trace file for review. Just make sure you provide the time and the called party number so I can trace it. My email is firstname.lastname@example.org.
Technical Marketing Engineer.
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