Grandstream UCM6308 – Enterprise IP PBX with 8 FXO, 8 FXS & Unified Communications
The Grandstream UCM6308 IP PBX is a high-capacity unified communication system featuring 8 FXO and 8 FXS ports, triple Gigabit Ethernet with PoE+, and support for up to 3000 users and 450 concurrent calls. With built-in conferencing, cloud management via GDMS, and no licensing fees, it is ideal for medium to large businesses requiring scalable VoIP and PSTN integration.
Description
The Grandstream UCM6308 IP PBX is a powerful enterprise-grade unified communications solution designed to support medium to large businesses with advanced VoIP, PSTN, and analog integration. Featuring 8 FXO ports and 8 FXS ports, it allows seamless connectivity to both traditional PSTN lines and analog devices such as phones and fax machines, making it a complete hybrid communication platform.
With support for up to 3000 users and approximately 450 concurrent calls, the Grandstream UCM6308 IP PBX is built to handle high-demand communication environments. It delivers robust SIP-based voice and video communication capabilities, enabling businesses to unify desktop phones, mobile devices, and softphones into a single network.
The system includes three Gigabit Ethernet ports with PoE+ support, offering flexible deployment options and integrated NAT routing. Built-in voice and video conferencing capabilities, combined with compatibility with Grandstream’s Wave app, enable efficient team collaboration without additional hardware.
The UCM6308 offers a comprehensive set of advanced telephony features, including auto-attendant (IVR), call queues, voicemail-to-email, call recording, DID/DOD, call park and pickup, paging, BLF, and multi-site peering. These features make it ideal for organizations seeking a centralized and scalable communication solution.
Security is a priority, with support for TLS, SRTP, HTTPS, and SSH encryption, ensuring secure voice and data transmission. The system also integrates with Grandstream Device Management System (GDMS), providing cloud-based provisioning, monitoring, and firmware management for simplified IT operations.
Additionally, the device includes USB 3.0 ports and an SD card slot, allowing for storage expansion, call recording, and application support. With its rack-mountable design, the Grandstream UCM6308 IP PBX is suitable for enterprise deployments requiring reliability, scalability, and high performance.
Best of all, the UCM6308 operates with no licensing fees, offering a cost-effective unified communications solution without recurring costs.
Analog Interfaces:
- 8 × FXO ports (RJ11) for PSTN trunk lines
- 8 × 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 3000 users
- Up to ~450 concurrent calls (G.711)
Voice & Codec Support:
- Opus
- G.711 (μ/a-law)
- G.722, G.723.1
- G.726, G.729A/B
- iLBC
- T.38 fax support
Telephony Features:
- Auto-attendant (IVR)
- Call queues
- Call recording
- Voicemail to email
- DID/DOD support
- Call park & pickup
- Paging & BLF
Collaboration Features:
- Built-in voice conferencing
- Video conferencing support
- Integration with Wave app
Security Features:
- TLS / SRTP encryption
- HTTPS / SSH access
- Secure authentication
Management & Provisioning:
- Web GUI
- GDMS cloud management
- TR-069 auto provisioning
Hardware & Design:
- LCD display with status indicators
- LED indicators for network, FXO, FXS
- Rack-mountable form factor
Ports & Expansion:
- 2 × USB 3.0 ports
- 1 × SD card slot
Power & Environment:
- Power input: 100–240 VAC
- External PSU
- Enterprise-grade build
Key Features:
- 8 FXO + 8 FXS Ports – Full hybrid PSTN & analog support
- Up to 3000 Users – Scalable enterprise solution
- 450 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
