Grandstream UCM6304A 1000 Users Audio IP PBX


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Grandstream UCM6304A is a powerful IP PBX for professional business telephony — with unified communications features like corporate chat, web meetings, access control and much more. UCM6304A supports up to 1000 users and 150 concurrent calls (120 with SRTP encryption) — with an integrated conference bridge that supports up to 7 meeting rooms and 120 parties. As part of the Grandstream UCM6300 Audio Series, it gives you everything the UCM6300 Series gives you except only video conferencing support, which means it integrates your business communications with all your devices — including the free Wave app for Android and iOS.

More than just an IP PBX, UCM6304A also provides enterprise class security — including an automated NAT firewall to protect the edge. The VoIP phone system has 3 Gigabit Ethernet ports with PoE+ support. It has 4 FXS ports for integrating analog devices and 4 FXO ports for connecting to the PSTN. The phone system is compatible with GDMS for cloud-based setup and management.

Grandstream UCM6304A Quick Specs:

  • Communications Protocol: SIP
  • Call Capacity:
    • Users: 1000
    • Concurrent Calls: 150
    • Concurrent SRTP Calls: 120
  • Conference Bridge:
    • Meeting Rooms: 7
    • Parties: 120
  • Auto Attendant: 5 layers
  • Physical Connectors:
    • FXS: 4x RJ11
    • FXO: 4x RJ11
    • Ethernet: 3x Gigabit RJ45 PoE+
    • USB: 2x USB-A 3.0
    • SD: 1x SD Card
  • Dimensions:
    • Height: 1.42 in
    • Width: 10.63 in
    • Depth: 6.89 in
  • Weight: 1.71 lb

Grandstream UCM6304A Audio VoIP Phone System Package Contents:


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