Cisco Cisco IP Contact Center Release 4.6.1 Maintenance Manual

Synchronizer process. The PG maintains idle communication paths to both sides of the Central
Controller in case a switch-over to the other side of the Central Controller or PG is necessary.

Real-Time Administration & Data Servers

To allow users to monitor current call center activity, the system software must send up-to-date
data to the Administration & Data Server in a reliable and timely manner. The real-time data
arrives at the Central Controller from the Peripheral Gateways, which are monitoring activity
at each call center. The CallRouter acts as the real-time server. The CallRouter for the other
side of the Central Controller is the back-up real-time server.

Administration & Data Servers or Administration Clients can be located with one or both sides
of the Central Controller, at a call center, or at another site. Any site that contains Administration
& Data Servers is referred to as an admin site.

The CallRouter is responsible for providing real-time data to an Administration & Data Server
at each admin site. Each site has at least one, and usually two, Administration & Data Servers
that serve as real-time data Administration & Data Servers for the site. The primary
Administration & Data Server maintains an active connection to the real-time server through
which it receives real-time data.

Administration Clients at the site receive their real-time data through a connection to an
Administration & Data Server. Administration Clients do not have the local database and
Administration & Data Server processes required to receive real-time data directly from the
Central Controller real-time server.

If the site has two Administration & Data Servers, Administration Clients are configured to
automatically switch to a secondary Administration & Data Server if the first Administration
& Data Server becomes non-functional for any reason. The secondary Administration & Data
Server also maintains connections to the real-time server; however, these connections remain
idle until needed.

You deploy an Administration & Data Server by installing the software using the Cisco Unified
ICM/Contact Center Enterprise & Hosted Installer, and then set up the Administration & Data
Server using the Web Setup tool.

You deploy an Administration Client by installing the software using the Administration Client
Installer, and then set it up using the Administration Client Setup tool.

Refer to the Installation Guide for Cisco Unified ICM/Contact Center Enterprise & Hosted for
details about installing and setting up the Administration & Data Servers.

Historical Data Servers

Historical data is forwarded to the Administration & Data Server where they are stored in a
special database. The server then acts as an Historical Data Server (HDS) for the admin site.

Administration Guide for Cisco Unified ICM/Contact Center Enterprise & Hosted Release 8.x