The Grandstream UCM6304 is a powerful Unified Communications IP PBX designed to provide a complete voice, video, messaging, conferencing, and collaboration solution for businesses and enterprises. It combines advanced IP telephony features with integrated communication and collaboration tools, providing a centralized platform for managing business communications.
Supporting up to 1,000 SIP users and up to 150 concurrent calls, the UCM6304 is well suited for medium-sized businesses, offices, hotels, educational institutions, call centers, and enterprise environments. It features 4 FXS ports for analog telephone connections and 4 FXO ports for PSTN line connectivity, providing flexible integration with both IP and traditional telephony systems.
The UCM6304 also provides built-in conferencing and meeting capabilities, allowing users to communicate through desktop devices, mobile devices, web browsers, and SIP endpoints. Its compatibility with the Grandstream Wave application enables users to make and receive calls, participate in meetings, and collaborate remotely.
Key Features
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Supports up to 1,000 SIP users.
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Supports up to 150 concurrent calls.
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4 × FXS ports for analog telephone connections.
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4 × FXO ports for PSTN line connectivity.
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3 × Gigabit Ethernet ports.
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Built-in NAT router functionality.
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Supports VoIP, video calling, conferencing, and collaboration.
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Built-in audio and video conferencing capabilities.
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Supports up to 200 participants for audio conferences.
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Supports up to 40 participants for video conferencing.
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Supports HD video conferencing with H.264, H.263, H.263+, H.265, and VP8 codecs.
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Supports Full-Band Opus audio codec and multiple additional voice codecs.
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Supports WebRTC for browser-based communication and collaboration.
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Compatible with the Grandstream Wave desktop, web, and mobile applications.
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Zero-configuration provisioning for Grandstream SIP endpoints.
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Supports automatic provisioning and centralized endpoint management.
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Advanced call center features including call queues and Automatic Call Distribution (ACD).
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Multi-level Interactive Voice Response (IVR) support.
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Supports voicemail, call recording, call forwarding, call transfer, call parking, ring groups, paging, intercom, and more.
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Supports voicemail-to-email and fax-to-email functionality.
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Advanced security features including SRTP, TLS, HTTPS, SSH, and 802.1X.
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Supports secure remote connectivity through Grandstream's remote access ecosystem.
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Compatible with GDMS for cloud setup, management, monitoring, and troubleshooting.
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API support for integration with third-party applications such as CRM and PMS platforms.
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Based on the Asterisk 16 open-source telephony operating system.
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Supports desktop and rack-mount installation.
Applications
The UCM6304 is suitable for:
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Corporate offices and enterprises.
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Small and medium-sized businesses.
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Hotels and hospitality environments.
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Call centers.
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Educational institutions.
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Healthcare facilities.
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Retail and multi-branch businesses.
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Organizations requiring integrated voice, video, conferencing, and collaboration services.
The Grandstream UCM6304 provides a scalable and feature-rich IP PBX platform that brings business telephony, video conferencing, collaboration, mobility, and communication management together in a single solution.