Cisco Unified Communications Manager Administration, use the menu path to configure media resource group lists.
Media resource management comprises working with media resource groups and media resource group lists. Media resource management provides a mechanism for managing media resources, so all
Cisco Unified Communications Managers within a cluster can share them. Media resources provide conferencing, transcoding, media termination, annunciator, and music on hold services.
A Media Resource Group List provides a prioritized grouping of media resource groups. An application selects the required media resource, such as a music on hold server, from among the available media resources according to the priority order that is defined in a Media Resource Group List.