The Unified ICM system consists of a number of computers, or nodes, which are typically located at more than one site. You can distribute an Unified ICM system among three to fifty sites or more. Each site can contain one or more nodes. The Unified ICM system requires several networks to interconnect nodes within and among the sites.
There are three basic types of Unified ICM sites:
Central sites. Contain one or both sides of the central controller (that is, the CallRouter and Logger) and possibly a separate Network Interface Controller. Central sites can also contain Administration & Data Servers and Peripheral Gateways.
Contact center sites. Contain one or more Peripheral Gateways (PGs) and possibly Administration & Data Servers. Sites also support Agents, phone applications and CTI applications.
Admin sites. Contain one or more Administration & Data Servers.
An Unified ICM site can be a combination of any two or more of these. For example, a single location can be both a central site and a contact center site.