Grandstream UCM6304A Audio IP PBX for 1,000 Users

The Grandstream UCM6304A focuses on audio communications for a site requiring four FXS and four FXO ports with capacity for 1,000 users. It supports 150 concurrent G.711 calls and 120 concurrent SRTP calls, allowing the technical team to size the appliance according to actual call type. Three self-adaptive Gigabit ports with PoE+ and a NAT router connect it to the network. A 320×240 color touch LCD provides a local interface. Wall or desktop placement is standard, while rack mounting is sold separately. This profile fits a large branch or mid-sized facility needing several analog connections without moving to the higher capacity of the UCM6304.

Grandstream UCM6304A in Operation

Four FXS ports serve four analog devices, while four FXO ports accept four analog lines. On the SIP side, the system accommodates 1,000 users. Administrators should compare the 150 concurrent G.711 ceiling with the 120 concurrent SRTP ceiling when setting encryption policy and calculating peak utilization. Two USB 3.0 ports and one SD interface add local connection points, so a wall or cable bundle should not obstruct them.

Fit for Saudi Organizations

The UCM6304A suits corporate offices, branches, service centers, and facilities retaining several analog lines and devices beside SIP phones. Its touch display gives technicians a direct local view, and wall mounting helps when no rack is installed. Desktop placement benefits operations teams that access ports regularly. If the project requires rack placement, the separately sold rack-mounting option must be included in procurement planning.

Difference from UCM6304

The UCM6304A and named UCM6304 each provide four FXS, four FXO, three Gigabit, two USB 3.0, and one SD interface. The UCM6304A supports 1,000 users, 150 concurrent G.711 calls, and 120 concurrent SRTP calls. The UCM6304 supports 2,000 users, 300 concurrent G.711 calls, and 200 concurrent SRTP calls. The UCM6304A includes one 12V adapter, while the UCM6304 includes two for failover. The UCM6304A targets wall or desktop use, with rack mounting sold separately.

Deployment Preparation

The package contains the UCM6304A, Ethernet cable, 12V power adapter, and quick installation guide. Assign four FXO lines and four FXS devices before installation, then plan all three Gigabit connections. Select a position where the touch display, USB ports, and SD interface remain accessible. For wall placement, prevent RJ11 cable strain; for desktop placement, leave working clearance behind the appliance.

Package Contents

• UCM6304A
• Ethernet cable
• 12V power adapter
• Quick Installation Guide