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Can CUCM run on the same host as other applications?

The transition to Virtualized Unified Communications represents a paradigm shift in how voice and video services are delivered. Unlike web servers or database applications, real-time communications are exquisitely sensitive to latency, jitter, and packet loss. Consequently, "over-provisioning"—a common remedy for performance issues in data applications—cannot mitigate poor design in a virtualized UC environment.

Cisco Unified Communications Manager (CUCM) virtualization requires strict adherence to specific hardware and software specifications to ensure real-time voice and video performance.