Cisco Cisco Unified IP Interactive Voice Response (IVR) 8.0(1) Installation Guide

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Cisco Customer Response Solutions Installation Guide, Release 6.0(1)
 
Chapter 2      Cisco CRS Deployment Options
Deploying Cisco CRS with an IPCC Express Gateway
If you deploy Cisco CRS components on a single server, the Cisco CRS cluster 
consists of that server. If you deploy Cisco CRS on multiple servers, the cluster 
includes the Cisco CRS server and any expansion servers and standby servers on 
which you installed Cisco CRS.
You can deploy over a WAN expansion servers on which only the Monitoring 
component or on which only the Monitoring and Recording components are 
installed. All other servers in the cluster must be deployed on the same LAN.
The LDAP server stores information about the cluster in a cluster profile. A 
cluster profile is an LDAP Organizational Unit that contains a set of LDAP 
entries, which include data relating to the Cisco CRS servers, components, and 
licenses installed in a cluster. A cluster profile allows the use of the same LDAP 
entries for multiple servers.
When you install or upgrade Cisco CRS on a server, you designate the cluster to 
which the server will belong by designating the cluster profile for that cluster.
Deploying Cisco CRS with an IPCC Express Gateway
The following guidelines apply if you install Cisco CRS in an environment where 
Cisco CRS communicates with Cisco ICM software through an 
IPCC Express Gateway. For additional detailed information, refer to IPCC 
Gateway Deployment Guide
, which is available at this URL:
  •
The IPCC Express Gateway must be installed on the Cisco CRS server (the 
server on which you install the Cisco CRS Engine).
  •
The IPCC Express Gateway must also be installed on the standby server for 
the Cisco CRS server, if you deploy such a standby server.
  •
If you deploy a standby server, refer to IPCC Gateway Deployment Guide for 
related information and requirements.
  •
Do not implement a single-server deployment. Cisco CRS components and 
Cisco Unified Communications Manager must reside on separate servers.