High Availability Configuration
IVR Routing high availability configuration consists of fully resilient controllers with dedicated highly available IVR Routing instances. Remote IVR Routing instances can be geographically dispersed to provide an added level of redundancy. In this configuration, we suggest IVR Routing not be installed on the Enterprise Server to avoid overloading the Enterprise Server hardware components. Each IVR Routing instance is on a dedicated server with a mirror of the Enterprise Server configuration information. If the Enterprise Server fails, all IVR Routing instances are unaffected. By making the telephone systems redundant in this configuration, if one IVR Routing instance fails, the remaining instances will pick up traffic from the telephone systems (up to the limitations of the hardware).
When using IVR Routing in a remote configuration, the Enterprise Server and all remote IVR Routing servers must be in the same workgroup or domain to synchronize workflows correctly.
The following figure displays the resilient controller, dedicated high availability IVR Routing configuration.
