IP PBX system Grandstream UCM6302A 1500 users

The Grandstream UCM6302A is an IP PBX system from the UCM6300 Audio series that supports up to 1500 users and provides a unified communications platform for businesses. It integrates voice, instant messaging, voice and web conferencing, mobility support and analytics in a single on-premise solution with optional cloud-assisted remote access via UCM RemoteConnect. The system includes a built-in conferencing platform and the free Wave App for desktop and mobile collaboration, and is designed for scalable deployment in organisations requiring consolidated voice and collaboration services.

Advantages

The UCM6302A combines multiple communication functions—call routing, voicemail, IM, voice/web conferencing and device interoperability—into a single IP PBX, reducing the need for separate systems. It supports up to 1500 users, includes a built-in conferencing and messaging platform and works with the Wave App for desktop and mobile access. Support for UCM RemoteConnect enables secure remote connections and hybrid cloud management while keeping primary control on-premise.

Suitable for

• Medium to large office environments
• Call centres and customer support teams
• Distributed teams requiring remote access and mobility
• Organisations needing integrated conferencing and messaging

Key specifications

• Model: Grandstream UCM6302A (UCM6300 Audio series)
• Maximum users supported: up to 1500 users
• Integrated features: instant messaging, voice and web conferencing, voicemail, call routing
• Remote access: supports UCM RemoteConnect service
• Client support: Grandstream Wave App for desktop and mobile

How to use

Install the UCM6302A on your local network and connect it to your SIP endpoints (IP phones, softphones, mobile clients) and PSTN/VoIP trunks as required. Configure user accounts, call routing rules, voicemail and conferencing settings through the web-based administration interface. Deploy the Wave App to users for desktop and mobile collaboration and enable UCM RemoteConnect for secure remote access where needed. Follow the Grandstream administration guides for advanced configuration and security hardening.

Recommendations

For reliable operation, place the UCM6302A on a secured network segment, keep firmware up to date, and configure regular backups. Use UCM RemoteConnect to simplify remote user connections and implement QoS on your network to prioritise voice and conferencing traffic.