Grandstream UCM6304 – IP PBX with 4 FXO, 4 FXS, 2000 Users & 300 Calls
The Grandstream UCM6304 IP PBX is a powerful unified communication solution featuring 4 FXO and 4 FXS ports, supporting up to 2000 users and 300 concurrent calls. With Gigabit Ethernet, PoE+, built-in conferencing, and GDMS cloud management, it is ideal for medium-sized businesses integrating VoIP, PSTN, and analog communication systems.
Description
The Grandstream UCM6304 IP PBX is a high-performance unified communications platform designed for medium-sized businesses that require seamless integration of VoIP, PSTN, and analog communication systems. Equipped with 4 FXO ports and 4 FXS ports, it enables direct connectivity to traditional PSTN lines and analog devices such as phones and fax machines, creating a complete hybrid communication solution.
With support for up to 2000 users and approximately 300 concurrent calls, the Grandstream UCM6304 IP PBX delivers reliable performance for growing organizations. It supports a wide range of SIP-based endpoints, including IP phones, softphones, and video conferencing systems, allowing businesses to unify communication across multiple devices and locations.
The system features three Gigabit Ethernet ports with PoE+ support, providing flexible network deployment and integrated NAT routing. Built-in voice and video conferencing capabilities, combined with compatibility with Grandstream’s Wave application, enable efficient collaboration across teams without the need for additional hardware.
Advanced telephony features include auto-attendant (IVR), call queues, voicemail-to-email, call recording, call park and pickup, BLF, call forwarding, Do Not Disturb (DND), and multi-site connectivity, ensuring a professional and efficient communication environment.
Security is enhanced with support for TLS, SRTP, HTTPS, and SSH encryption, protecting both voice and data communications. The system integrates seamlessly with the Grandstream Device Management System (GDMS), allowing centralized cloud-based provisioning, monitoring, and firmware updates for simplified IT management.
Additionally, the UCM6304 offers flexible deployment options with a desktop or rack-mountable design, making it suitable for various business environments. With no licensing fees, it provides a cost-effective solution for organizations looking to implement enterprise-grade unified communications without ongoing costs.
The Grandstream UCM6304 IP PBX is the ideal solution for businesses seeking scalability, security, and advanced communication features in a single, easy-to-manage platform.
Analog Interfaces:
- 4 × FXO ports (RJ11) for PSTN trunk lines
- 4 × FXS ports (RJ11) for analog phones/fax
Network & Connectivity:
- 3 × Gigabit Ethernet (10/100/1000 Mbps)
- PoE+ support
- Integrated NAT router
Capacity & Performance:
- Up to 2000 users
- Up to ~300 concurrent calls (G.711)
Voice & Codec Support:
- G.711 (μ/a-law)
- G.722, G.723.1
- G.726, G.729A/B
- iLBC
- OPUS
- T.38 fax support
Telephony Features:
- Auto-attendant (IVR)
- Call queues
- Call recording
- Voicemail to email
- Call park & pickup
- Call forwarding & DND
- BLF and paging
Collaboration Features:
- Built-in voice conferencing
- Video conferencing support
- Wave app integration
Security Features:
- TLS / SRTP encryption
- HTTPS / SSH access
- Secure authentication
Management & Provisioning:
- Web GUI
- GDMS cloud management
- TR-069 auto provisioning
Hardware & Design:
- LED status indicators
- Desktop or rack-mountable design
Power & Environment:
- Power input: 100–240 VAC
- External PSU
- Operating temperature: 0–40°C
- Humidity: 10%–90% non-condensing
Key Features:
- 4 FXO + 4 FXS Ports – Hybrid PSTN & analog support
- 2000 Users Capacity – Scalable business solution
- 300 Concurrent Calls – High-performance communication
- Triple Gigabit Ports with PoE+ – Flexible deployment
- Built-in Conferencing – Voice & video collaboration
- No Licensing Fees – Cost-effective unified communications
- GDMS Cloud Management – Remote monitoring & provisioning
- Advanced Telephony Features – IVR, queues, recording, voicemail
- Enterprise Security – TLS, SRTP, HTTPS
Technical Datasheet
You can download the full technical documentation for this product from the link below:
Download PDF Datasheet
