Grandstream UCM6304 IP PBX – Enterprise Unified Communications System with High Capacity VoIP Performance

Grandstream UCM6304 IP PBX is a high-capacity unified communications platform designed for medium to large enterprises that require reliable, scalable, and secure VoIP communication. Engineered to support a large number of SIP users, concurrent calls, and advanced collaboration features, this IP PBX integrates voice, video, data, and mobility into a single solution. With multiple FXO ports for PSTN connectivity, built-in conferencing, and seamless integration with Grandstream cloud services, the UCM6304 provides a flexible and cost-effective communication system for modern business environments.

Product Features

Advanced Unified Communications Platform

Combines voice, video, messaging, and mobility into one system to enhance collaboration and streamline communication workflows.

High User and Call Capacity

Supports a large number of SIP users and concurrent calls, making it ideal for enterprises with demanding communication needs.

Built-In Audio and Video Conferencing

Offers multi-party conferencing capabilities without the need for external conferencing services.

Multiple FXO Ports for PSTN Integration

Equipped with multiple FXO ports to connect traditional analog lines, ensuring compatibility with existing telephony systems.

Remote Access and Mobility Support

Allows users to connect remotely via mobile and desktop applications, enabling flexible work environments.

Enterprise-Grade Security

Includes advanced security features such as TLS, SRTP, HTTPS encryption, secure boot, and unique device certificates.

Easy Deployment and Centralized Management

Provides a user-friendly web interface, zero-configuration provisioning for Grandstream endpoints, and centralized management tools.

Cloud and Remote Management Integration

Supports Grandstream cloud platforms for remote monitoring, maintenance, and system management.

Product Specifications

• Model: UCM6304
• SIP User Capacity: Up to 2000 users
• Concurrent Calls: Up to 300 calls
• Conference Capacity: Multiple conference rooms with large participant support
• FXO Ports: 4 analog trunk ports
• FXS Ports: None
• Network Ports: 1 x Gigabit WAN port, 1 x Gigabit LAN port
• USB Ports: Yes
• Storage: Supports external storage via USB or SD card
• Voice Codecs: Opus, G.711, G.722, G.729, iLBC
• Security: TLS, SRTP, HTTPS, secure boot, unique certificates
• Provisioning: Zero-config for Grandstream devices
• Management: Web GUI, cloud management support
• Power Supply: External adapter
• Application: Enterprise VoIP, unified communications, business telephony system