Unified IP IVR can be deployed in your IP network on any Cisco approved virtual servers.

The following four figures illustrate the different ways you might deploy Unified IP IVR:

• The first two figures show how you can deploy Unified IP IVR, without Unified CCE.

• The second two figures show how you can deploy Unified IP IVR with Unified CCE.

For more information on Unified IP IVR deployment models, see the design guide for Unified Customer Contact Express, which includes information for Unified IP IVR Design Guides at https://www.cisco.com/en/US/products/sw/custcosw/ps1846/products_implementation_design_guides_list.html.

The following Unified IP IVR deployment models show Unified IP IVR deployed apart from Unified CCE.

The following figure shows Unified IP IVR installed on a separate server. The following are brief descriptions of key items in the figure:

• Gateway. Connects the enterprise Unified Communications network to the Public Switched Telephone Network (PSTN) and to other private telephone systems such as Public Branch Exchange (PBX). You purchase gateways separately. Both voice and web correspondence travel through the gateway.

• Unified CM Server. Provides the features that are required to implement IP phones, manage gateways, provides failover and redundancy service for the telephony system, and directs voice over IP traffic to the Cisco Unified Contact Center Express system. You must purchase Unified CM separately.

  Note	Unified IP IVR and CM have to be installed on separate servers.

• Cisco Unified CCX Server. Contains the Unified CCX Engine that runs Unified IP IVR.

The figure below shows how you can deploy Unified IP IVR apart from Unified CCE. This figure expands the focus to a Unified CM cluster and depicts the possibility of having a single Unified CCX server with optional ASR and TTS servers.

The following figure shows how one or more Unified IP IVR servers fit into an Unified CCE system.

The following figure shows a Unified CCE deployment model, but focuses on the Unified CM, Unified IP IVR, and Unified CCE servers. In a Unified CCE system, there is the Unified CM server or servers, the Unified CCX server or servers, optional Unified CCX subsystem servers such as MRCP ASR or MRCP TTS servers, and the Unified CCE servers.

Note	The optional MRCP ASR and TTS software cannot be on the same server as the Unified CCX engine and is 3rd party software, not Cisco software.

Unified IP IVR supports high availability failover between two Unified CCX servers but not between a cluster of servers. You can also deploy multiple Unified CCX servers (with Unified IP IVR) and let Unified CCE manage the load balancing and failover between them. If one of the IVRs fails, the Unified CCE system will detect the failure, stop sending calls to the failed system, and instead send those calls to other Unified IP IVRs.