Hi Dan, Thanks for the great document. My customer runs CUCM version 22.214.171.12400-26. I have completed the steps on his system, after that I was able to block a certain caller but at the same time other callers were blocked. I have recreated the issue in our lab CUCM version 126.96.36.19945-1 and found that the callers are not hitting the ! TP which is assigned to 'Filter_List' partition unless the prefix for the calling party in the incoming calls is configured. Please find the attached picture: if the system was configured as shown in the picture all other IP-Phones which are registered to CUCM 2 will not be able to dia 7070 IP-Phone, but if I configure prefix 6 at the calling party for incoming calls and modified the 8080 TP to be 68080 everything works properly (IP-Pone 8080 is blocked and all other IP-Phones are able to call 7070). Please let me know why other IP-Phones were not hitting the ! TP ? and how should I proceed?
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