GrandStream UCM Series IP PBX

UCM6300A Series – IP PBX & Unified Communication System

The UCM6300A Series is a powerful on-premise IP PBX solution designed for businesses that need secure, scalable, and fully integrated voice and collaboration services. With built-in audio conferencing, remote access support, and high reliability, the UCM6300A series is ideal for SMBs and enterprise environments.

UCM6304A – Advanced IP PBX System

A high-capacity unified communication platform built to handle demanding business communication needs with ease.

Key Features:

• Supports a high number of SIP extensions and concurrent calls

• Built-in audio conferencing without external servers

• Secure remote access for off-site users

• Advanced call routing, IVR, and call recording

• Compatible with SIP trunks and IP phones

• Ideal for multi-department and growing organizations

Best for: Medium to large businesses with high call volumes

UCM6302A – Compact IP PBX System

A cost-effective yet powerful IP PBX solution designed for small to medium businesses.

Key Features:

• Supports multiple SIP extensions and simultaneous calls

• Integrated audio conferencing

• Secure VoIP communication with encryption

• Easy web-based management interface

• Seamless integration with SIP phones and gateways

• Reliable performance in compact deployments

Best for: Small offices and SMB environments

Why Choose the UCM6300A Series?

• All-in-one unified communications platform

• Secure, scalable, and on-premise solution

• No recurring licensing fees

• Easy deployment and centralized management