Grandstream UCM6304 IP PBX Appliance


Condition:     New (Factory Sealed)
Manufacturer:     Warranty: 3 Year
Refund Policy:     30 Days Return & Refund


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24 - 72 Hours Estimated delivery

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 +1 213-723-1705
     +1 415-849-0434



The Grandstream UCM6304 is a powerful IP PBX appliance designed to cater to the communication needs of small to medium-sized businesses. It serves as the central hub for unified communication, offering a feature-rich platform for voice, video, data, and mobility applications.

With support for up to 500 users and 75 concurrent calls, the UCM6304 ensures efficient and scalable communication solutions. It integrates seamlessly with various Grandstream endpoints and third-party SIP devices, providing a comprehensive and cost-effective unified communication solution.


  • Users: Supports up to 500 SIP endpoint registrations
  • Concurrent Calls: Handles up to 75 simultaneous calls
  • FXO Ports: 4 FXO (RJ11) ports for analog trunk lines
  • FXS Ports: 2 FXS (RJ11) ports for analog devices
  • Network Interfaces: Dual Gigabit Ethernet ports
  • USB Port: 1 USB 3.0
  • SD Card Slot: 1 microSD card slot
  • Voice Codecs: Wide range of industry-standard voice codecs including G.711, G.722, G.726, G.729, and Opus
  • Protocols: SIP (RFC3261), TCP/IP/UDP, RTP/RTCP, HTTP/HTTPS, ARP, ICMP, DNS (A record, SRV, NAPTR), and more
  • Security: TLS and SRTP encryption, HTTPS provisioning, secure and automated provisioning using TR-069
  • Power Supply: Output: 12VDC, 1.5A; Input: 100-240VAC, 50-60Hz
  • Dimensions (H x W x D): 1.18″ x 8.66″ x 8.66″
  • Weight: 1.37 lbs
  • Mounting: Desktop or wall mountable