Cisco Cisco Unified Customer Voice Portal 10.0(1)

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Cisco Internet Service Node (ISN) Configuration and Administration Guide
OL-1251-03
Appendix C      ISN Deployment
ISN Comprehensive Deployments
Figure C-1
ISN Comprehensive Deployment, ICM Enterprise
Configuration overview for this deployment model:
There are two Network VRUs:
One for the Switch leg (Type 5). 
One for the VRU leg (Type 7).
System Information must include correlation ID settings.
Use the ICM Script Editor’s SendToVRU node to connect the call to the Network VRU.
Note: The numbers in the figure indicate call flow progression.