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Grandstream UCM 6304A – Technology Bazar

The Grandstream UCM6304A is a high-capacity audio-only IP PBX designed for small to medium businesses. It supports up to 1,000 users and 150 concurrent calls, offering unified voice, messaging, conferencing, and remote access—all with no licensing fees.

Key Features

✅ Supports up to 1,000 users and 150 concurrent calls (expandable to 1,500 users / 200 calls)
✅ 4 FXO & 4 FXS ports for analog and PSTN integration
✅ Built-in IM, audio conferencing & web meeting platform accessible via Wave App (desktop/mobile/SIP endpoints)
✅ Free Wave app for unified communications across devices
✅ Zero‑config provisioning with Grandstream IP phones
✅ Three Gigabit Ethernet ports with PoE+ support and integrated NAT routing
✅ Secure UCM RemoteConnect remote access (cloud‑based NAT traversal)
✅ Hot standby / high‑availability support for redundancy
✅ Advanced security: secure boot, unique certificates, random defaults
✅ Full‑band Opus codec support with resilience to up to 50 % packet loss
✅ GDMS cloud provisioning and management
✅ API support for third‑party integration (CRM, PMS, etc.)
✅ No per-user licensing or subscription fees

Category: IP PBX Brand: Grandstream

Description
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The Grandstream UCM6304A is a robust audio-focused IP PBX solution ideal for organizations seeking scalable on-premise communications with advanced collaboration tools. Built for reliability and flexibility, it supports up to 1,000 users and 150 concurrent calls, with expansion options reaching 1,500 users and 200 concurrent calls on certain platforms.

This appliance includes 4 FXO and 4 FXS ports for analog device integration, three auto-sensing Gigabit Ethernet ports with PoE+, and built-in NAT routing for remote access via UCM RemoteConnect.

It integrates native tools for instant messaging (IM), audio conferencing, and web meetings, accessible across desktops, mobile devices, and SIP endpoints through the free Wave app. Enhanced security is ensured with features like secure boot, unique certificates, and random default passwords, while high-availability is supported via hot standby and local dual deployment.

With support for the full-band Opus codec, resilience to up to 50% packet loss, and full compatibility with GDMS cloud management and third-party integrations (CRM/PMS via API), the UCM6304A delivers enterprise-level flexibility and control—all without recurring fees