Cisco Cisco Unified IP Interactive Voice Response (IVR) 8.0(1) Administrator's Guide

The Unified ICME subsystem is available only if your system has a license 
installed for Unified IP IVR 

The Cisco CRS system uses the Unified ICME subsystem to communicate with 
Unified ICME, which is used by Unified ICME to manage call distribution across 
sites and call-processing environments. 

The CRS server is frequently used as part of an Unified ICME solution with 
Unified ICME. In this type of installation, the Unified ICME uses the CRS server 
to queue calls and perform other functions such as collecting caller-entered digits, 
performing database lookups, and playing back prompts.

If you are not using Unified ICME, you do not need to provision the Unified 
ICME subsystem.

Unified ICME scripts can direct calls based on various criteria such as the time of 
day or the availability of subsystems. The scripts use four different commands to 
interact with the CRS system: 

Connect—Connects the call. Unified ICME sends the connect message with 
a label to instruct the CRS system where to direct the call.

Release—Hangs up the call.

Run VRU Script—Runs an Unified ICME Voice Response Unit (VRU) 
script on the CRS system. 

Cancel—Cancels the Unified ICME VRU script that is currently running.