Grandstream UCM6308A Audio IP PBX System – 1500 Users, 200 Concurrent Calls, 8 FXO & 8 FXS Ports | UCM6308A

Grandstream UCM6308A Audio IP PBX System – 1500 Users, 200 Concurrent Calls, 8 FXO & 8 FXS Ports | UCM6308A

The Grandstream UCM6308A is a high-capacity audio IP PBX system designed for medium to large businesses, enterprises, hotels, call centres and multi-location offices. Supporting up to 1,500 SIP users and 200 concurrent calls, it provides advanced business communication features, including call routing, interactive voice response (IVR), voicemail, call recording, call queues and audio conferencing. Equipped with 8 FXO ports, 8 FXS ports, three Gigabit network interfaces and PoE+ support, the UCM6308A delivers a scalable and reliable unified communication solution for professional business environments.

Key Features

• ☎️ 1,500 SIP Users: Supports up to 1,500 registered users and extensions.

• 📞 200 Concurrent Calls: Handles up to 200 simultaneous G.711 calls.

• 🔌 8 FXO Ports: Connects up to 8 traditional PSTN telephone lines.

• ☎️ 8 FXS Ports: Connects analogue telephones and fax machines.

• 🌐 3 Gigabit Ethernet Ports: Flexible network connectivity with PoE+.

• 🎙️ Advanced IVR System: Supports up to 64 layers of interactive voice response.

• 🎧 Call Centre Features: Includes call queues, automatic call distribution and agent management.

• 👥 Audio Conferencing: Supports up to 150 simultaneous meeting participants.

• 🔐 Advanced Security: Supports TLS, SRTP, HTTPS and secure communication.

• 📱 Grandstream Wave App: Desktop, web and mobile communication support.

• ☁️ Centralized Management: Supports Grandstream Device Management System (GDMS).

• 💾 Storage Support: USB and SD card interfaces for backup and storage.

• 🔋 Lifeline Support: FXO and FXS ports provide lifeline functionality during power outages.

• 🖥️ LCD Display: 128 × 32 dot-matrix LCD with navigation buttons.

• 🗄️ Rackmount Design: Suitable for professional server racks and business communication cabinets.

  Technical Features

  Specification	Details
  Brand	Grandstream
  Model	UCM6308A
  Product Type	Audio IP PBX System
  PBX Platform	Asterisk-Based
  Maximum SIP Users	1,500
  Maximum Concurrent Calls	200
  Maximum SRTP Calls	150
  FXO Ports	8 × RJ11
  FXS Ports	8 × RJ11
  FXS Lifeline	Yes
  FXO Lifeline	Yes
  Network Interfaces	3 × Gigabit Ethernet
  PoE Support	PoE+
  NAT Router	Yes
  Audio Conference	Up to 150 Participants
  Meeting Rooms	Up to 9 Simultaneous Public Rooms
  IVR	Up to 64 Layers
  Call Centre	Call Queues and Automatic Call Distribution
  Voice Codecs	Opus, G.711, G.722, G.723.1, G.726, G.729A/B, iLBC, GSM
  Fax Support	T.38
  Security	TLS, SRTP, HTTPS, SSH, 802.1X
  USB Ports	2 × USB 3.0
  Memory Expansion	SD Card Slot
  LCD Display	128 × 32 Dot Matrix
  Mobile Application	Grandstream Wave
  Cloud Management	GDMS
  Power Supply	2 × 12V DC, 2A
  Dimensions	485 × 187.2 × 46.2mm
  Unit Weight	2.538kg
  Operating Temperature	0°C to 45°C
  Mounting	Rack Mount / Desktop
  Product Category	Enterprise Telephone Exchange System