Grandstream UCM6304A IP PBX - Audio-Only Unified Communications Solution

The Grandstream UCM6304A is a powerful on-premise audio IP PBX designed for small to medium-sized enterprises. It supports up to 1000 users and 150 concurrent calls, delivering seamless voice communication with Full-Band Opus codec at 48 kHz sampling rate for superior audio clarity. This model features 4 FXS ports for analog extensions and 4 FXO ports for PSTN line integration, providing flexible connectivity options for legacy telephony systems.

Equipped with three Gigabit RJ45 network ports with integrated PoE+, the UCM6304A ensures efficient network management and device powering. It incorporates advanced security protocols such as secure boot, unique certificates, and randomized default passwords to protect communications and user accounts.

Key communication features include built-in instant messaging, audio conferencing, and web meetings, complemented by compatibility with the Grandstream Wave app for mobile, desktop, and SIP endpoint integration. Zero-touch provisioning simplifies deployment of Grandstream SIP endpoints, while the API enables third-party integrations with CRM and PMS platforms.

The hybrid platform supports remote users via the UCM RemoteConnect cloud service, making it an ideal system for modern workplaces requiring both on-premise control and cloud manageability. Additionally, it supports high-availability deployments and integrates with Grandstream Device Management System (GDMS) for cloud-based management and monitoring.

Overall, the UCM6304A provides a robust, secure, and scalable IP telephony solution packed with unified communication and collaboration tools to meet the demands of growing businesses.