Grandstream UCM6308 (8x FXS, 8x FXO) VoIP PBX

Description

A Complete Unified Communications Platform — No Licensing Fees

The Grandstream UCM6308 allows businesses of all sizes to build powerful and scalable unified communication solutions in an easy-to-manage fashion with no licensing fees. It provides a platform that unifies all business communication on one centralised network, including voice, video calling, video conferencing, video surveillance, web meetings, data, analytics, mobility, facility access, intercoms, and more.

Key Highlights

• Supports up to 3,000 users and 450 concurrent calls (300 with SRTP encryption)
• 8× FXO ports for PSTN trunk connections and 8× FXS ports for analogue telephone lines
• 3× Gigabit auto-sensing RJ45 network ports with integrated PoE+
• Dual ARM Cortex-A53 Quad-Core processor with 4GB memory
• No per-user, per-feature, or ongoing licensing fees

 

Rich Telephony Features

The UCM6308 delivers full VoIP telephony features including caller ID, call queues, customisable call distribution, and an auto attendant with up to 5 levels of interactive voice response. Zero-configuration provisioning of Grandstream SIP endpoints makes deployment fast, and the system’s Asterisk 16 foundation ensures broad SIP compatibility with third-party endpoints and trunks.

• Auto attendant with up to 5-level IVR
• Call queues, ring groups, call forwarding, call recording
• Integrated conference bridge for up to 300 participants in an audio conference
• Zero-configuration provisioning of Grandstream SIP endpoints
• Support for SIP trunks and analogue PSTN lines simultaneously

 

Built-In Video Conferencing & Web Meetings

The UCM6308 includes an integrated video conferencing platform supporting up to 8 rooms and 60 participants at 1080p Full HD resolution, with screen sharing, whiteboarding, and more. Employees can connect from desktop, mobile, GVC series devices, and IP phones — making it equally effective for in-office and hybrid remote teams.

• Built-in HD video conferencing — up to 8 rooms, 60 participants at 1080p
• Screen sharing and whiteboarding
• Wave app for Android, iOS, Chrome, and Firefox for communication with all UCM6300 users
• UCM RemoteConnect cloud NAT traversal service for secure remote connections without complex VPN setup

 

Enterprise-Grade Security

The UCM6308 protects all communications with enterprise-grade security including secure boot and SRTP encryption. Advanced security protection includes a unique certificate and random default password per device to protect calls and accounts. The integrated NAT router and firewall provide additional network-level protection for the communications platform.

• Secure boot, SRTP, TLS, and HTTPS with hardware encryption acceleration
• Fail2ban, whitelist/blacklist, and automated intrusion alerts
• Automated NAT firewall traversal service for secure remote connections
• Full-Band Opus voice codec and H.264/H.263/H.265/VP8 video codec support with jitter resilience up to 50% packet loss

 

Third-Party Integration & Cloud Management

The UCM6308 can be integrated with third-party CRM and property management systems (PMS), and offers an API for additional custom integrations. GDMS provides a free centralised interface to provision, manage, monitor, and troubleshoot devices — individually or in batches by site, group, and model — with bank-grade TLS encryption and two-factor authentication.

• CRM and PMS integration with open API for custom workflows
• GDMS cloud management — free, no subscription required
• Zero-config provisioning via ZeroConfig, DHCP Option 66, multicast SIP, and mDNS
• On-premise control with optional cloud remote access via UCM RemoteConnect
• Rack-mountable 1U form factor for server room deployment

 

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