Cisco Cucm 12.5 Virtualization Requirements Work -

that pre-configure the VM for you. Your hardware needs depend entirely on your user count: User Capacity Disk Space 2,500 Users 7,500 Users 1 x 110 GB 10,000 Users 1 x 110 GB

The virtualization requirements for Cisco CUCM 12.5 are exacting for a reason—voice and video communications are the most latency-sensitive workloads in the enterprise. A misconfigured hypervisor will manifest not as a crash, but as ghostly issues: intermittent one-way audio, dropped calls during failover, or voicemail email delays. cisco cucm 12.5 virtualization requirements

The hardware requirements for CUCM 12.5 virtualization vary depending on the chosen platform. Here are some general guidelines: that pre-configure the VM for you

Cisco mandates VMware vSphere ESXi as the only supported hypervisor for CUCM 12.5. The hardware requirements for CUCM 12

If you're moving from a legacy hardware appliance (like the BE6K) to a virtualized environment, use the Cisco Collaboration Sizing Tool (CST) to model your placement accurately.