The UCM series of IP PBXs offer an extensive set of unified communication features in an easy-to-manage on premise solution with no licensing fees, upgrade fees or costs per features. Our UCMs range from small and medium business deployments to small and medium enterprise solutions.

• Supports up to 3000 users and up to 450 concurrent calls
• Zero configuration provisioning of Grandstream SIP endpoints
• Built-in conferencing & meetings platform; support desktop, Wave app, and SIP endpoints