Cisco Cisco Administrative Workstation Installation Guide

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Chapter 5      Peripheral Gateway Configurations
PG Platform Options
5-6
Cisco ICM Enterprise Edition Pre-installation Planning Guide Release 6.0(0)
Considerations for PGs and PIMs
Here are some points to remember when planning for PGs and PIMs:
Maximum PGs on a platform. A maximum of two PGs can run on a single 
hardware platform. These may be of the same or different types. For example, 
on a single machine you could have an Aspect PG and an Avaya PG, or you 
could have two Avaya PGs.
PIMs and peripherals. You need one PIM for each peripheral that will be 
connected to the PG. The PIMs are installed along with the PG software by 
using the ICM Setup tool.
A single PG serves peripherals of the same type. A single PG (and its 
associated PIMs) can serve only ACDs of the same type. For example, an 
Aspect PG with four PIMs can serve only four Aspect ACDs. It cannot serve 
three Aspect ACDs and an Avaya DEFINITY ACD. You can put VRU and 
Media Routing PIMs on the same PG as an ACD, but all VRU PIMs must 
service VRUs of the same type.
Using two PGs on a platform. Before you commit to installing two PGs on 
a single computer, consider the expected call load for the ACDs that will be 
connected to the PGs. You need to be sure that the computer has enough 
memory and processing power to handle the expected call load. In addition, 
you should ensure that the bandwidth in the network between the PG and the 
ICM Central Controller is enough to handle the route request and event traffic 
that will be generated by the PGs. (These same considerations apply to using 
multiple PIMs on a PG, but to a lesser extent.)
Properly sizing the PG hardware platform. Work with your ICM software 
support provider to properly size the PG hardware platform(s) and to 
determine which PG configuration is appropriate for your application. Cisco 
offers standard and high-end PG hardware platforms to suit more demanding 
contact center applications.
CTI Server and an ACD PG on the same platform. You can install CTI 
Server and an IVR or ACD PG on the same hardware platform. The PG may 
run multiple PIMs. (The same considerations described earlier in “Using two 
PGs on a platform,” also apply to the CTI Server-PG configuration.)