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Grandstream UCM6308A IP PBX

Grandstream UCM6308A IP PBX

The Grandstream UCM6308A IP PBX is a high-capacity audio-focused unified communications (UC) appliance designed for medium to large businesses that require scalable voice communications, messaging, conferencing, and secure remote connectivity. As part of the UCM6300 Audio Series , it delivers…

£950.00

The Grandstream UCM6308A IP PBX is a high-capacity audio-focused unified communications (UC) appliance designed for medium to large businesses that require scalable voice communications, messaging, conferencing, and secure remote connectivity. As part of the UCM6300 Audio Series, it delivers enterprise-grade telephony and collaboration capabilities in a single on-premise platform. It supports up to 1,500 users and 200 concurrent calls.

The UCM6308A focuses on audio communications rather than native video conferencing, while providing support for remote users through Grandstream Wave, GDMS, and UCM RemoteConnect.

Ideal For

  • Medium to large businesses
  • Enterprise environments
  • Call centres and support operations
  • Multi-site organisations
  • Hybrid and remote workforce deployments
  • Businesses replacing legacy PBX systems

Benefits

The UCM6308A centralises business communications into a single platform for voice, messaging, conferencing, and mobility.

It supports secure remote access and collaboration tools, allowing employees to connect from desktop, mobile, web clients, and SIP devices without requiring complex VPN deployments.

Its built-in redundancy and high-availability support make it suitable for organisations that require reliable communication infrastructure.

Telephony Capacity

  • Up to 1,500 users/extensions
  • Up to 200 concurrent calls
  • Up to 150 SRTP concurrent calls

Network & Interfaces

  • 8 × RJ11 FXO ports
  • 8 × RJ11 FXS ports
  • 3 × Gigabit Ethernet ports
  • 2 × USB 3.0 ports
  • 1 × SD card interface
  • Heartbeat interface for High Availability

Collaboration

  • Instant Messaging (IM)
  • Audio conferencing
  • Web meetings
  • Desktop and mobile collaboration support

Platform

  • Based on Asterisk 16
  • GDMS cloud management support
  • Third-party API integration capability
  • High Availability deployment support

Next Day Delivery
For UK orders received before 1pm Monday to Friday, we operate a next business day delivery service, subject to availability. We use next day services from the leading delivery companies.

Specific Time Delivery
If you need an item urgently, or delivered at a specific time, please contact us.

Delivery Methods
We use several leading delivery companies. The majority of our deliveries are made by DPD, including most international orders.

Shipping prices are calculated during the checkout process. We deliver to almost every country. For international delivery services, we use DHL, a high quality, fast delivery service. Prices are provided based on the weight of the order; this is calculated when you reach the checkout.

For full shipping information please visit our shipping page.

Overview

The Grandstream UCM6308A IP PBX is a high-capacity audio-focused unified communications (UC) appliance designed for medium to large businesses that require scalable voice communications, messaging, conferencing, and secure remote connectivity. As part of the UCM6300 Audio Series, it delivers enterprise-grade telephony and collaboration capabilities in a single on-premise platform. It supports up to 1,500 users and 200 concurrent calls.

The UCM6308A focuses on audio communications rather than native video conferencing, while providing support for remote users through Grandstream Wave, GDMS, and UCM RemoteConnect.

Ideal For

  • Medium to large businesses
  • Enterprise environments
  • Call centres and support operations
  • Multi-site organisations
  • Hybrid and remote workforce deployments
  • Businesses replacing legacy PBX systems

Benefits

The UCM6308A centralises business communications into a single platform for voice, messaging, conferencing, and mobility.

It supports secure remote access and collaboration tools, allowing employees to connect from desktop, mobile, web clients, and SIP devices without requiring complex VPN deployments.

Its built-in redundancy and high-availability support make it suitable for organisations that require reliable communication infrastructure.

  • Supports up to 1,500 users/extensions
  • Up to 200 concurrent calls
  • 8 × FXO ports for PSTN connectivity
  • 8 × FXS ports for analogue devices
  • Built-in Instant Messaging (IM) platform
  • Audio conferencing and web meeting support
  • Grandstream Wave app support (desktop, mobile, web)
  • UCM RemoteConnect support for remote users
  • Zero-touch provisioning for Grandstream SIP endpoints
  • 3 × Gigabit Ethernet ports with PoE+ support
  • Built-in NAT router functionality
  • Hot Standby High Availability support
  • Advanced security with secure boot and encrypted communications
  • API support for CRM and third-party integrations
  • GDMS cloud management support
  • Dual USB 3.0 ports and SD card slot support

Telephony Capacity

  • Up to 1,500 users/extensions
  • Up to 200 concurrent calls
  • Up to 150 SRTP concurrent calls

Network & Interfaces

  • 8 × RJ11 FXO ports
  • 8 × RJ11 FXS ports
  • 3 × Gigabit Ethernet ports
  • 2 × USB 3.0 ports
  • 1 × SD card interface
  • Heartbeat interface for High Availability

Collaboration

  • Instant Messaging (IM)
  • Audio conferencing
  • Web meetings
  • Desktop and mobile collaboration support

Platform

  • Based on Asterisk 16
  • GDMS cloud management support
  • Third-party API integration capability
  • High Availability deployment support