What is a media resource group?

• A. A logical grouping of media resources used by CUCM for allocation.
• B. A security group for media endpoints.
• C. A collection of conference bridges.
• D. A set of DSPs for transcoding only.

Answer: (A)

A Media Resource Group is a logical grouping of media resources that CUCM can allocate when processing a call. It brings together the devices that perform media tasks—such as transcoding DSPs, conference bridges, tone generators, and MOH servers—so CUCM can pick an appropriate resource from the group when a call requires it. This organization helps manage available resources, supports load balancing, and enables failover if some resources are busy or unavailable. The concept is broader than just a single type of resource, which is why it’s not limited to a security group or to a collection of conference bridges, and it isn’t restricted to DSPs used only for transcoding.