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Grandstream UCM6304A Audio IP PBX Appliance, 4 FXO / 4 FXS, 1000 Users & 150 Calls (UCM6304A)
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The Grandstream UCM6304A audio IP PBX supports up to 1000 users and 150 concurrent calls with 4 FXO PSTN ports and 4 FXS analog ports. Outfitted with 3 Gigabit PoE+ ports, built-in IM, audio web meetings, and Wave app integration, it powers high-capacity enterprise voice networks.
Description
The Grandstream UCM6304A Audio IP PBX is a high-capacity unified communications appliance engineered with 4 FXO ports, 4 FXS ports, and Asterisk 16 to deliver enterprise-class voice, messaging, and mobility for up to 1000 users.
Technical Specifications & Core Features
| Specification / Feature | Technical Details |
|---|---|
| Model / SKU | Grandstream UCM6304A |
| User & Concurrent Calls | Supports up to 1000 SIP Users and up to 150 Concurrent Calls |
| Analog Telephony Interfaces | 4 × RJ11 FXO Ports (PSTN Trunk) + 4 × RJ11 FXS Ports with Lifeline Support |
| Audio Conferencing Platform | Built-In Voice Conferencing Bridge Supporting up to 150 Simultaneous Participants |
| Network Interfaces | 3 × Gigabit Auto-Sensing RJ45 Ports with Integrated PoE+ and NAT Router |
| Collaboration Suite | Integrated Instant Messaging (IM), Wave Mobile/Desktop Apps, and UCM RemoteConnect |
| Operating Engine | Asterisk version 16 Telephony Engine with GDMS Cloud Management |
| Audio Codecs Supported | Full-Band Opus, G.722, G.711u/a, G.729A/B, Jitter Resilience up to 50% Packet Loss |
| Enterprise Security | Secure Boot, Unique Security Certificate, Random Default Password, SRTP, TLS, HTTPS |
| Form Factor | Standard 1U 19-Inch Rackmount Metal Chassis with Internal Power Supply |
Package Contents
- PBX Chassis: 1 × Grandstream UCM6304A Audio IP PBX Appliance
- Power Cable: 1 × Heavy-Duty Regional AC Power Cord
- Mounting Hardware: 1 × 19-Inch 1U Rackmount Bracket Kit, Screws, and Ethernet Cable
- Documentation: Quick Installation Guide and Safety Information
Recommended Applications
- Mid-to-Large Enterprise Telephony: Reliable communications foundation for businesses with up to 1000 extensions.
- 4-Line PSTN Trunk Backup: Connecting 4 analog lines for local calling resilience alongside SIP trunks.
- Multi-Site Enterprise Networks: Interconnecting distributed offices and mobile teams with Wave collaboration.
- Call Queue & Auto-Attendant Handling: Handling high call volumes with multi-level IVRs, hunt groups, and CDR logging.
