Cisco Cisco Unified Customer Voice Portal 11.0(1)

Non-Unified CVP System Components

Non-Unified CVP components that can be part of the Unified CVP solution consist of the
following:

•

Gateway. Converts TDM voice signals to Voice over IP (VoIP) and provides call switching
capabilities.

•

Gatekeeper. Provides directory lookup services with load balancing and failover capabilities
for H.323 endpoints.

•

Content Services Switch. Provides load-balancing services for servers.

•

Speech Server. Provides speech recognition services and text-to-speech services for a
VoiceXML Gateway.

•

Media Server. Hosts the media files that contain messages and prompts callers hear.

•

Cisco Unified Communications Manager. Manages and switches VoIP calls to IP phones;
can originate and receive calls from either SIP or H.323 devices.

•

ICM Server. Depending on the Unified CVP call flow model, can provide VoIP call switching
capabilities, call control, information processing, and exchange of data.

•

Content Services Switch (CSS). Provides load-balancing and failover services for servers.

•

SIP Proxy Server. Routes individual SIP transport messages among SIP endpoints types
and implements load balancing and failover among those endpoints.

SIP and H.323

Unified CVP provides the ability to switch calls using Session Initiation Protocol (SIP) rather
than, or in addition to, H.323. Only H.323 was provided in earlier versions of Unified CVP.

Note: SIP is the preferred protocol for Unified CVP. H.323 support is primarily to provide
backward compatibility for users of previous versions of Unified CVP. These are referred to as
legacy deployments.

The following figure shows a Voice over IP (VoIP) SIP-based Unified CVP system.

Configuration and Administration Guide for Cisco Unified Customer Voice Portal Release 4.1(1)