Hi,
I'm trying to setup a way to block specific incoming calls on our CUCM 9 platform. I've got it so that it blocks specific numbers and allows through all other calls providing the caller has calling line ID enabled. Trouble is it's also blocking all calls from unknown \ withheld numbers. We're using SIP trunks to connect to the PSTN and the calling line ID for all withheld numbers is sent down the trunk is "9anonymous".
RTMT reports Termination Cause Code (1) Unallocated (unassigned) number for the failed withheld calls
I've setup the call blocking following these instructions:
https://supportforums.cisco.com/document/71966/blocking-calls-based-calling-party-id
http://www.netcraftsmen.com/cisco-cucm-blocking-calls-by-calling-party-number-id/
The CSS setting on the Inbound Settings of the SIP trunk uses "CS-SIP-INBOUND"
The Partition PA-SIP-INBOUND is in this CSS with two Translation Patterns:
!
and
<null> (no title)
Both have the "Route Next Hop by Calling Party Number" option enabled
Both are configured to use CS-SIP-INBOUND-BLOCKED
The CSS CS-SIP-INBOUND-BLOCKED has one Partition PA-SIP-INBOUND-BLOCKED
With two Translation Patterns assigned exactly as above but with RNHCPN disabled and using the standard CSS for use for national call access.
I've then created Translation Patterns for the numbers to be blocked and assigned them to the PA-SIP-INBOUND-BLOCKED partition
I had though that the withheld numbers would be handled by the <null> Translation Patterns but that doesn't seem to be the case and I can't create a TP called "9anonymous" as a workaround either.
Any ideas?
Thanks!
