Grandstream UCM6304 IP PBX

Grandstream UCM6304 IP PBX

The Grandstream UCM6304 IP PBX is a unified communications platform for medium-sized and growing organisations. It combines voice, video calling, web meetings, mobility, intercoms, analytics, and supported software integrations within one system. With capacity for 2,000 users and 300 concurrent calls, it supports busy offices, institutions, hotels, healthcare facilities, and multi-department operations.

Product Overview

The Grandstream UCM6304 IP PBX supports Session Initiation Protocol endpoints and provides zero-configuration provisioning for compatible devices. Therefore, administrators can deploy supported communication endpoints more efficiently. Its integrated meeting platform also connects office and remote users through desktops, mobile devices, web access, and SIP equipment.

Four Foreign Exchange Office ports connect analog telephone lines. Meanwhile, four Foreign Exchange Station ports support analog telephones, fax machines, and compatible intercom devices. Three self-adaptive Gigabit network ports can operate in switched, routed, or dual mode.

Key Features

• Supports up to 2,000 users, providing capacity for expanding organisations and multiple business departments.
• Handles up to 300 concurrent G.711 calls, allowing large numbers of employees to communicate simultaneously.
• Supports up to 200 concurrent encrypted calls using Secure Real-time Transport Protocol.
• Includes four FXO and four FXS ports, providing direct connections for analog lines and endpoint devices.
• Offers zero-configuration provisioning, simplifying the deployment of compatible SIP phones and endpoints.
• Provides built-in voice, video, and web meetings for office-based and remote collaboration.
• Supports automated Network Address Translation firewall traversal for secure remote connections.
• Includes three Gigabit network interfaces with integrated Power over Ethernet Plus and NAT router functionality.
• Provides a full Application Programming Interface for compatible Customer Relationship Management and Property Management System integrations.
• Supports centralised cloud setup, monitoring, configuration, firmware upgrades, and troubleshooting.

Technical Specifications

• Brand: Grandstream
• Model: UCM6304
• Product type: Internet Protocol Private Branch Exchange
• Maximum users: 2,000
• Concurrent calls: Up to 300 using G.711
• Concurrent SRTP calls: Up to 200 using G.711
• Meeting capacity: Up to 200 simultaneous participants across all rooms
• Public meeting rooms: Up to 15 simultaneous rooms
• Video feeds: Up to 9 per meeting room
• Analog telephone interfaces: 4 RJ11 FXS ports
• Public telephone network interfaces: 4 RJ11 FXO ports
• Analog port protection: Lifeline capability
• Network interfaces: 3 self-adaptive Gigabit ports
• Network modes: Switched, routed, or dual mode
• Network function: NAT router support
• Display: 128 × 32 dot-matrix graphical display
• Dimensions: 485 × 187.2 × 46.2mm
• Unit weight: 2,490g
• Installation: Desktop or rack mounting
• Operating temperature: 0°C to 45°C
• Operating humidity: 10% to 90% non-condensing

Common Applications

This enterprise phone system suits corporate offices, hotels, hospitals, schools, customer service operations, and multi-site organisations. It can manage SIP extensions, analog lines, call queues, meetings, intercom services, and remote users. Consequently, businesses can consolidate several communication tools within one centrally managed appliance.

Why Choose This Product?

The Grandstream UCM6304 IP PBX combines substantial call capacity with direct analog connectivity and flexible network operation. Moreover, its rack-mountable design suits organised equipment rooms. Built-in meetings, endpoint provisioning, remote access tools, and software integration options also help reduce the complexity of managing separate communication platforms.

Frequently Asked Questions

Is the Grandstream UCM6304 IP PBX designed for rack installation?

The appliance supports both desktop and rack mounting. Its chassis measures 485 × 187.2 × 46.2mm.

Can Grandstream UCM6304 IP PBX analog port capacity be expanded?

The four FXS and four FXO ports provide direct analog connections. Additional ports can be added by peering the system with compatible analog gateways.

How does the system handle unstable voice networks?

Its voice processing includes a dynamic jitter buffer, error correction, and resilience for up to 50% audio packet loss under supported conditions.

What can administrators manage through the cloud platform?

The supported management platform provides centralised provisioning, configuration, monitoring, firmware upgrades, alarms, and troubleshooting.